The first thing I want to say is I'm sorry you had a tough time this year. I've been there and done that, in...... and out, of the sport more than I'd like ..... so I kinda get how you're feeling. I don't know how old you are, and what your dreams were for "after gymnastics," so I can't do more than offer up a possible scenario.
My first inclination, were I in your shoes, would be to try getting more time in a more significant role as an instructor/coach. It's a great way of taking your mind off your situation, especially if you're destined to, or have a gift for, coaching........and a great way to find out if that's a likely direction for you. I was "on the bubble" about continuing, for the same reasons as you...... a bunch of physical and emotional investment with nothing, beyond others' sympathy, in return. It took an opportunity to coach to get me off that bubble.
It distracted me from any sense of loss to the extent that I only missed "being in the mix" when I'd make the mistake of going to one of my team's meets.... so maybe you'll feel the same way and need, after watching one meet, to tell your old team mates that ya just can't be there, that way, for them. I was able to hang out with my team mates, and chat up about gym stuff, so that helped a lot because I still had my old pals.
One of the surprising things I discovered was coaching taught me more about how to do gymnastics than training ever could. So much so, that I was able to learn skills that I'd never considered, well not on my best event because........ If you get what I mean, but on the others where I hadn't trained as much and had things to learn. I've wondered, since then, if I'd known as a gymnast all that I learned from coaching, would I have figured out how to be more effective with less wear and tear on my body? Possibly?
So..... If your time frame allows, you could keep "in shape" with some light work on perfecting shapes, alignment, flexibility, and as much strength work as you have time for. By going that direction, you'll have more to work with if you decided, a year down the road, on giving the team route one last try..... just for fun of course. You'll have an advantage because you'll have the combined gifts of your past skill work, a year of deeper learning as a coach, and a freshly rested, healed and prepared body...... and maybe a measure of spirit to help bring it all together.
So that's my offer. If you provide yourself with the option of giving it another try by attending to the basic requirements of the sport as you move more deeply into coaching, you'll have lost nothing more than a bunch of sweat. It may turn out that you decide against the team thing, but at least then it will be more by choice, and possibly the choice will be made because you have something more satisfying to do...... If you get what I mean.
. It's definitely been tough, but I also stepped up my coaching hours and spent a lot of time hanging out with my team. And now that I'm almost done with rehab, I've been able to start playing around in the gym and having a lot of fun. It actually has been kinda nice not always thinking about my skills and feeling tired and sore, though I really would have liked to finish out my senior year. I don't really know if this helps at all, but thought I'd share as someone else who's come out on the losing end of the fight between body and gymnastics 
