How much effort do you want to put forth to be a good player? If you have to read a book 10 times are you willing to do it? Are you willing to look through your old tournaments and determine where you made mistakes, or are you just going to write off the early exit as being on tilt?

Honestly, your OP sounds like you want someone to tell you you won't ever be good so you can blissfully donk away at low-buyin tournaments.