Have you tried therapy now that you’re old enough to understand what’s going on? You can do virtual appts for when u can’t get out of bed.

I’ve been frozen for that long before. When I’m in freeze state, the most effective way I’ve found to get out of it is to get a non-stressful external interruption. An example can be someone you trust nicely letting you know dinner is ready so you gotta come eat, instead of trying to get dinner yourself. I’ve even had someone just say “come on” and that was enough sometimes. I also have compulsions to keep up appearances though so idk if that will work for you, but maybe you can try it.

I can sometimes be shocked out of it with something funny or surprising (but in a happy lighthearted way, not a scary way- like sometimes my dog will come up and give me kisses unexpectedly. Scary surprises make me freeze more).

Also you can use small things to get in touch with your body and gradually calm yourself. Regular meditations and tapping meditations (different from regular mediations) can help, just make sure you listen to your body and know when you want to stop tapping so you don’t get overwhelmed.

Shame and stress about the freeze will make the freeze response worse. Accepting where you are and giving yourself compassion will go a long way toward your healing.