To accomplish something new, we need to change what we're doing. One place to start is usually with a new attitude. If we have the same attitude about our future, we'll keep getting the past.
It may be judgmentalism - comparing yourself to someone else. Do you constantly find yourself comparing yourself to your colleagues, your neighbors, or your spouse? It comes out like this: "I wouldn't have done that." "I am glad I didn't do that." "They always think they're right." "That was stupid."
It may be selfishness - always being right and wanting to get what you deserve. Trust me, you aren't and you don't.
It may be defeatism - you don't want to try something new, because it never works. "This always happens to me."
Whatever your attitude malfunction, it's holding you back. Take it out, examine it, and throw it in the garbage disposal where it belongs.