Another person who's been there? Done That? It's truly scary at first? But, try webbing up 'neuro psych evaluations and just find out what they entail.
I mean, after all Christopher Reeve had a VERY VERY bad head/spine injury...I was at that site when he got hurt, and he survived a far WORSE injury and kept going? Acting and producing and directing... soo your life is NOT at an end because you can't actually play? Now is a time when you can cheer support and help your teammates go and do it without you? But also because you helped! I bet they'll acknowledge that in the end. [Believe me, that fall, not knowing at the time, what it was, was a really scary thing to learn about and then follow up on in terms of reports!] It amazes me what each of us can truly DO when faced with such hurt and injury. We simply overcome? We have to!?
In a way, it's really hard for you to now HAVE to change channels, so to speak, in the middle of a show? BUT you have your life and your own brain and health to consider. You have to/MUST put your own well being first NOW! You are just going to have to find different ways to make your life goals, and they might be far different from anything you thought they might have been in that soon to be old 'before', we live in the now and your now is gonna be different. How you do it all is up to you.
It's a lot to take in? But at any age, it is. I promise you, tho, that you can heal lots, and with caution about your body and how you use it? You are likely to achieve far more than you ever thought you could in that 'before'!
My heart is with you for whatever it's worth, and I see many others here care as well. Who knows? And, no one does yet, that you mite get back to a whole normal and soon!
Keep in touch, and if your folks are acting 'iffy'? Have them read all this! You are being truly brave in all of this, and if you gotta cry? IT IS OK! But, I've always found that was too tiring!...So I researched all of what was happening to me so I could understand it better! Still, now and then? I gotta cry for whatever reasons and it feels soo good just to do so.
We ARE far BETTER than what happens to us!

's - j