re: Poker & How to play
There are very few, if any, times that you should be cold calling a UTG raise with ATo from MP unless you have very specific reads(which, no, you don't, I don't care what you say...)
Drop those crappy unsuited broadway cards from your range when calling an open.
You absolutely have a ton of leaks in your game, all beginning players do. The absolute majority of players do. Look into the Cash Game Analysis section and start reading and posting in there. Take the responses as positive criticism, even though at first, some may be harsh, but that is only because I guarantee you're making a lot of mindless plays. Think about why you're doing every action.