First, let's be clear -- you can't ultimately
fail if you're trying again! Failing is just sitting there and not doing anything. Give yourself props. You're back at it and that counts for something!
We have a lot of calorie counters on the board so you're in good company here. Plus, 3FC is a phenomenal support system. Anytime you find yourself in "times of trouble" you can come here and vent, find solutions, or just be surrounded by people in the same boat (sometimes that's all you need!).
My advice would be to get in touch with those feelings and figure out where it comes from. Nerves can be a good thing.
Some of the biggest and best adventures start with the nervousness of a new beginning.