Read both of themCome to think of it,
50 cent - hustle harder, hustle smarter
Or something like that
Napoleon Hill - master key to riches
Both are great self help books with very sensible anecdotes. The latter is a classic and IMHO better than "think and go rich", which i generally regard as the first self help book. Read master key and you might not need any other self improvement text short of something religious, if you're into that.