How long does it take to practice drawing until you are considered to be good? I know takes a lot of time and patience but I have a hard time focusing on things (I like to entertain thoughts in my head) enough to just jot them down. I wish I had spent more time drawing, writing and other things but I tend to procrastinate and put things off only to regret it later. I wish I had done a lot things but I only want to focus on this, I want to try and draw but I do not have the patience for it. What could I do? How can I develop that patience, focus and skill? How long does it usually take?

Have a look round the art threads, check out the different styles. Buy yourself some tutorial books and see how you get on. We all have our different techniques, just see what suits you best