If you asked somebody, 'what do you wish for in life?' they wouldn't say 'happiness. ' I would have answered 'excitement, knowledge,' God knows - I mean, many, many different things, but certainly not 'happiness'. It seemed like a foreign concept to wish for something that specific and that singular.
When I think of a lot of the players I admire, they could always play their parts without hiding behind distortion and sustain. Put the time in. Hear your mistakes. Yeah, it sucks, it's humbling, it makes you want to throw the guitar out the window. But if you work on your mistakes, they'll eventually go away, and you'll become a strong player.