well i can as a senior as i take a lot of meds and deal with anxiety, depression and PTSD OCD and lastly ADHD. yeah never knew until i had brain surgery Twice. that was a lot of typing on my brain.
Breathing technique, be sitting or stand, your choice. breathe in through your nose as much as you can then out the mouth like blowing through a straw easy smooth routine, do that till your heart rate backs off. next if your able sit on the side of your bed or couch, just somewhere you can sit relaxed. now fingers on one hand at a time tap thumb to pinky finger then next finger and so on
to pointer finger then use other hand and repeat. for this 3 sets each hand then two sets with your eyes closed, lastly one more breathing exercise twice. see how you feel