I want to abandon everything to focus on guitar
Are you kidding? Why would you abandon everything but guitar?
I don't want to work, I want only guitar in my life.
I can understand why you feel that way, but you shouldn't focus entirely on one thing in your life. You might just be excited about it right now and that is all you want to do. I would give it some time and see what comes of it.
I already did that and I reached the conclusion that I'm going to focus on music. Also I don't think I should take your advice.
Im just saying that it's dangerous to focus entirely on one thing in life. If it fails you would have no backup.