In my relatively short life I have learned some things that I did not know before.
1. Nothing is easy, nothing, not until you learn it
2. Keep records, it's part of life. The sooner you start the better. A bonus is it teaches you to be organized, which you have to be in order to survive without others paying your bills.
3. Some things have to be developed, even if you know how to do them.
4. Patience is VERY important.
I think that by knowing and developing these attitudes/actions, ANYONE can succeed at work they do.