I don’t have experience with anxiety or antidepressants so I can’t add anything to what you already know there about antidepressants pluses and minuses. Personally, I’d try to avoid it, but I’ve never been in a state to need it so I freely admit that I may choose differently if I did suffer from anxiety.
That being said, if you can manage it, I think you should try to give yourself some more time and forgiveness working without medication first. You said you’ve been refeeding for the last 6 months, but that you’ve also restricted during that time as well so I think it’s likely to have derailed or at least slowed your progress and would be worth giving your body some real focused attention and love.
19 is young and hopefully given what you need you can start to see progress quickly. Maybe journaling regularly could give you something to look back over and help you see slow progress more clearly like realizing you’re having fewer panic attacks or your up days are coming more frequently than they used to. I just know that sometimes when we have a long way to go it can be hard to see how far we’ve come while we’re still in the midst of it.
Best of luck to you with whatever route you take for your healing.