Yeah you have to RELATE to your lead character, not just admire their skills! I am more comfortable with a good-aligned Cleric than any other type. I keep starting new games, too, trying all the different types and combinations, but I come back to my Cleric with a sense of relief.... It is important, too, to have a character portrait you like. I know lots of people are likely to think that the portrait doesn't matter - but I can't play with a character if I don't like the face.... (yeah, I know...!)
Maybe, when you have found a class you are comfortable with, you will be able to complete a game!
F.