Panic attacks - help? 💔

Last year, I was diagnosed with PTSD and anxiety from abuse I went through a few years ago. Lately I have been having flashbacks which are causing frequent panic attacks and causing me to be unable to leave the house or be close to my husband. Tonight, I was supposed to be hanging out with friends, but had a full-on panic attack and me and my husband ended up having to go home because I couldn't stop crying. This has been happening more frequently lately as my PTSD has been worsening, so I have a doctor's appointment set up for next week to try to talk to someone about therapy or medication, but I was wondering if anyone with similar issues has any tips suggestions for what I could do for my PTSD and anxiety attacks in the meantime? I feel so bad that my problems are affecting my husband now too. I just want to be able to breathe and relax more.