As someone who identifies as pessimistically optimistic, this is VERY tough; much easier to give the advice than follow it. 
However, sometimes, finding something positive to focus on, no matter how small, can reduce anxiety (if that is an issue with you too, like me). Have a favorite movie you know by heart? Watch it. Avoid stressors, including DU if it is one, for a few days. There are times I only breeze thru DU and avoid the news like the plague because I am already in a bad head space. Dodo videos! Because, you know, animals!
On a more metaphysical level, someone mentioned writing down your problems and concerns, then "freezing them". I have done something similar, but I go outside, in a very controlled environment, and I burn them. I usually try to make sure the wind is blowing; a really strong wind is best. Then, see your problems and concerns go up in flames, consumed, and then scattered to the four winds.
Sage can be good too, unless the smell is too strong, and watch out and don't set off smoke detectors (I did that three times; my dogs were NOT amused!). Personally, I like jasmine, lavender, and patchouli. Really, any scent that makes you happy, can help too, but sage is used to ward off things.
Feel better!
Edit history
Recommendations
0 members have recommended this reply (displayed in chronological order):
= new reply since forum marked as read