With hope questions

what should you do if you feel "in over your head"?

stop what you are doing
make a quick decision
do something new instead
check with a guardian or mentor

I think check with someone. Being in over your head means that you feel like you've blown things out of proportion or you're speculating but aren't sure about something. Asking someone else for their opinion and advice is really helpful.

Keep your breathing calm and try to ignore it