hi
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i have a couple of ways i deal with anxiety and panic attacks.
a way to stop panic attacks is to relax. it is physically impossible to panic and relax at the same time. you dont even have to really relax. just fool your brain into thinking you are relaxing. imagine as if you just did a meditation or had a massage and all your muscles have turned into limp noodles. just let them all go. this will stop the panic attack. you may have to do it a couple times over your first tries, but when i started doing this it ended the attacks and soon i never had a panic attack again,

i have this thing called an anxiety meter that i visualize in my head. it goes from 0 to 10, 10 being the worst anxiety ever. so when i am anxious, i see where the needle registers on the meter. then i do breathing exercises until i get it down to a four. which is manageable for me. sometimes i see a knob on the meter and i will manually turn down the meter to four so i can calm down faster. practicing this enough, all i have to do now when i am anxious is say dial down, and i can calm myself.