dude start small ok? i know it seems like a stupid thing but its to teach you logic and other fundamentals. i mean tic tac toe teaches you the logic behind an AI and how it can be totally based off of simple or even complexed math. as you make these games you will see that things that you see online or on a console is complex and simple in alot of ways because of how they work. just stay calm just learn or ask someone who might no.
ps. im working on my tic tac toe and the ai is freakin hard to fix right now. im still trying to figure it out how to make it pick the right moves to win. if you want a test sample of either my v.8 or v.9 game then tell me and i'll post it or email it to you. im actually here today to see if i can find any material that could help me. v.9 is actually a working multiplayer game but it has a couple of bugs in it.
well back to what i was saying just keep looking at the tutorials and if one of them confuses you i will read it for you and translate it to something abit easier to understand if i can.