Welcome to PC
Telling your parents is a hard step... I kept putting it off when I got on ADs for months until I got up the nerve.
Everyone copes in different ways ... but do you have a T or someone you can talk to? Maybe consider ADs? What about writing or trying to find a *relaxing* hobby? I've found that sometimes things like that have helped me.
If I can help out in any way, send me a PM okay? Hope your GP appt goes well.