i read a comment before that said stop looking at bitcoin charts

very true.
if you are looking daily at charts by all means try to stop.
but that aside, try taking walks, 30 mins every day to cool your head off. Meditate if you can, but a lot of people find this difficult.. so i suggest just taking a stroll. Working out takes off a BUNCH of stress, and can give you a strong feeling of relaxation, muscle relaxing and blows out a lot of steam that might be building up and triggering your anxiety and most importantly you will also sleep better as a result!