“If a problem is fixable, if a situation is such that you can do something about it, then there is no need to worry. If it’s not fixable, then there is no help in worrying. There is no benefit in worrying whatsoever.”
The Dalai Lama has said:
Worrying a little about something is good, so long as you let it propel you towards fixing a problem and finding solutions. However, that is where the positive aspect of worrying ends. If unbridled, worrying can cause stress, excessive worrying can even lead to blood pressure problems and hypertension.
Keep calm, and move ahead. More likely than not, there will always be a solution – to any problem.