A Fellow AP Mid in Need of some Advice.

So guys, I play AP mid for my ranked team as the title suggests and as you all know a team is only as strong as their weakest link. That would happen to be me. I don't want to bring my team down and I surely know they wouldn't replace me, I just wish to impress them and maybe carry for once. I can play practically any solo mid but whatever I choose I always feed early, I make up for it late game and normally pull out positive but it still bothers me I make the games unnecessarily hard. Anyways the reason I turn to Reddit is so that I may gain any advice to make me a better Solo mid player, Whether it be teaching me 1v1 in a custom game or just leaving a comment of proper Solo mid techniques I would greatly appreciate it. (My mains are Ahri, Veigar, Swain, the infamously banned Morganna, and my number one pick, Malzahar) Thank you Reddit.