I would have to say I am about a 3, I am still learning and hope to someday be able to do all my own repairs.
Only one way to learn, and that is by watching someone do it, or doing it yourself. The great thing about doing it yourself, if you do it right you gain experience and confidence that you can learn more. The bad thing about doing it yourself, if you (bleep) up, you can't blame it on anyone else.
Yes, despite my current abilities, I bleeped up my share of times working on things. Don't ask, because I will not tell.