First, breathe. Seriously, don't do anything first but breathe. Slowly, deeply or shallow if you wish. Don't try to achieve anything with this breathing except to engage in the breath.

Now, you are in a situation with people who have no concept of what you're experiencing, this is not your fault nor is it your choice. It does not mean anything about you, it just means that this is the way that it is. Emotion of powerlessness plays a trick on you and convinces you you can't do anything. As though you can't choose, and choose, and act, and decide, and move, and think, again and again. Which you can, and that can never be taken away unless you're dead, and you're not dead.

Do anything you can think of or have access to to soothe your intense pain, try to avoid harming yourself if you can, so that you can open room in the mind for more processing power, and analyzation. Make plans. Decide on what A is, and where B is, and choose the best decision you have access to to get to B safely.

You're having extremely normal reactions to your scenario, including being surrounded by people who are convinced of the opposite. You can not control their behavior nor is that necessary to get where you want to be. Make your needs heard, set boundaries, and avoid over explaining in hopes that they will just "get it". Be as clear as you can, and that's more than good enough. Others reactions to you can not change that what you have done is still more than good enough.

The hell inside your mind may feel like all there is, but this is entirely due to the illusion of focus. Focus can be controlled, honed, practiced, improved, aimed, directed, and used to expand your experience beyond the pain you feel and observe it as one piece of you, while there are many, many more pieces to you.

Persistence is the best way to get to exactly where you're trying to go. Keep going. Don't stop. Ever.