If everything you do seems to fail, keep doing things.
If you do succeed, but you don't really want what you succeed at, don't be afraid to move on--even if it's the first thing you accomplish. Use your success to energize future attempts.
If you know what you want, don't settle. Settling is for the birds, and even they migrate.
Don't be afraid to invest in the long term. Do question thoroughly whether it's something you really want to do. Experiment and get your hands dirty to test the idea--sometimes what works in thought doesn't work in reality and vice versa.