Hey man, don't give up on mid! It's the place to be. Let me see if I can give you a few pointers
Since AP champions tend to have lower AD stats (especially since you wont be running those runes or masteries) its reasonably harder to last hit creeps with autoattacks in the middle. Its going to take some practice for you to be able to do this more efficiently. Try to get the feel for the champion you are going to play with their autoattack animation and missile speed (the ranged animation like Morgana's little purple bolt thingy) because they are all unique. However, the increased ability power gives you an alternate method of securing minion kills with your abilities! Most typical AP champions have their own unique process of using their abilities to secure minion gold. For instance: Morgana's W can kill full health caster minions at ability rank 3 with 20 AP. Since caster minion's come into lane with melee minions in front of them, you can place a pool under them as soon as they stop for 3 guaranteed minion kills. Experiment with other champions and find out what works best for all of them, or watch videos/ask people and emulate their strategies, you'll be a farming boss in no-time.
Don't feel bad. Everyone gets ganked. The good news is every single gank is %100 preventable. Obviously you can't just sit under your tower all day, but there are some skills you can work on to help you out with your unfortunate deaths.
MAP AWARENESS: As you'll play more league of legends, you'll develop an uncanny ability to point your eyes different directions, focusing both on your champion and the minimap. I'm kidding of course, but you do need to watch the minimap. If you can see all 5 enemies on the map then you know exactly where every single one is right? But if you can only see 4, then you know one of them can be in any single dark position on the map. See 3? 2 could be anywhere. See only 2? 3 could be anywhere. Its actually a scary prospect, but use logic to your advantage. If you can only see 4, but you know bottom lane got a kill 10 seconds ago, you shouldn't have to worry about the 5th enemy who just spawned instantly ganking your lane. Inversely, if you are close to your opponents tower and you can only see one champion in every lane (3 enemies) its probably pretty safe to assume at least one of them is coming for you. Also, when you are chasing for a big kill or really focused on something happening to your champion, that's likely when you will need (and forget) to check the map most and make sure enemies aren't coming after you for starting a fight, or running from an ambush. There are infinite situations to cover, but think about it logic, and think about what you would do if you were playing your own team in the situation you are in (my teammate is nearby so I can be more aggressive, so if they are being overly aggressive they might have teammates nearby), and respond logically. You'll do better.
Everytime i play mid, when I go back and finish buying items, I spend whatever is left on at least two wards. I then ward both bushes. It's worth the 150g to feel safe. Its worth the 150g to be able to let your team know where the enemies are going. Its worth the 150g for you or your team to perhaps pickup a kill because the enemy thinks they are hidden. Its worth the 150 to prevent what otherwise would have been a gruesome demise. Just get into the practice of doing this. You think it would be easy to remember, but getting caught up in a game makes it easy to forget. More vision gives EVERYONE on your team more certainty over map awareness, and enough cooperation from everyone warding in the right spots guarantees you victory. Think about what makes teams comeback from being behind, the element of surprise right? Whats better to secure a victory or make a comeback than the element of surprise, and whats better way to keep or foil the element of surprise by revealing someone's position? BUYEM. PLACEM. WIN
If nobody has explained this to you yet, crowd control is an element of any ability a champion has to disrupt how another champion works. Some examples are slows, stuns, knockbacks, silences, fears, taunts, suppression, etc. It's really important to understand the capabilities all the champions your are playing with and against have in terms of crowd control to maximize the potential of your team, because if your champion has crowd control you aren't using, you are hurting yourself and your team. A simple example of using crown control to your advantage is getting ganked as morgana. Lets say the enemy alistar enters your lane from behind because you weren't watching the map, and you know alistar can knock you closer to the enemy katarina and the enemy tower. However, you remember that morgana's E (black shield) can block abilities, so when alistar tries to knock you closer to katarina, your spell shield blocks it and you escape rendering his CC useless. Angry that you got away, and confident in a 2v1 situation, Alistar and Katarina chase you all the way to your tower, and you know you don't have enough damage for both of them, so as soon as you see one of them come within range of your tower, you use morgana's Q (dark binding) to BIND them so the tower can attack them multiple times and they cannot escape. Finally, seeing that you are getting dived(chased to your tower) your friendly master yi came down from toplane and enters to help you out. Since you don't want the enemy alistar and katarina to escape, you use Morgana's R (soul shackles) to slow them, and then stun them, allowing master yi and you to finish them off without them escaping. Using all of Morgana's ability to deny and use crowd control turned a 1v2 situation into a double kill for your team, Katarina could not have done all of that. However, should you have not used your crowd control, and negated alistar's, Katarina would have been able to kill you easily, picking up the cooldown reset on your death to use all her abilities on the master Yi that just wanted to help. That was just one situation that could go good or bad depending on circumstance. Knowledge is power, so give yourself the edge to understand champions and their abilities
Hopefully that helps. Good luck to you sir, feel free to ask me questions or add me ingame.