Every future situation can be divided into the following 3 outcomes:
- The best case scenario
- The average case scenario
- The worst case scenario
What if instead of worrying too much about whether the best case scenario will happen or not, you accept the worst case?
Will that make you less hopeful or work less hard?
However, it'll definitely take loads of stress off your mind. You'll be able to work on your goals with a peace of mind.
It's not hypothetical. I've tried this multiple times. Dale Carnegie recommended this approach.
Give it a shot.