If you encounter an issue or potential problem, first think about whether or not it will matter in 5 years.
If it won’t, don’t spend more than 5 minutes worrying about it.
If it will matter, and you’ve thought about it 5 or more times without taking any kind of action, stop worrying and do something. Take one teeny tiny step.
Remember, do nothing. Get nothing. (Other than more worrying).
Do something. You might get something. You will most assuredly learn something. And you’ll end your worrying.