For every little action, there's a reaction. You don't always get the results you want, but you have moved closer to your goal by taking action.
Mistakes help you to learn what doesn’t work and what does. Even setbacks can prove the value of your efforts, as long as you get back up with more knowledge and experience than ever and keep on going. Whatever the outcome may be, that action has created progress. Keep taking action, keep getting better and better at it, and sooner or later you will be right where you wish to go.