If you have panic attacks you need to be treated for them by a doctor. I would also suggest therapy to help deal with your relationship with your parents.
I am hoping you see a therapist and or psychiatrist? Do you take any kind of medication? It sounds also like your parents do not seem to understand what you are going through?
A huge help for me was a support group, either online OR in person. Being around people who understand is a huge help. Then if you aren't already, start seeing a therapist, they can help with ways to get you to cope and work yourself through your attacks.
Finally, medication can often help. I am on zoloft and have been for 13 years, it has helped so much with my panic and OCD.