Life is meant to be fun, and joyous, and fulfilling.
The attitude you have as a parent is what your kids will learn from more than what you tell them. They don't remember what you try to teach them. They remember what you are.
Please watch out for each other and love and forgive everybody. It's a good life, enjoy it.
Do the jobs you like least first. It makes each successive job easier.
Do everything at 100 percent of its potential and never accept second best.
I know that I personally have felt quite happy because I've done what I wanted to do. I pursued my interests and have thus managed to combine my business with lots of fun. I guess my only advice is to do what you enjoy, and try to do your best with it.