Hot for me, to crippling anxiety

My boyfriend and I have been together for about 9 months and when we started out, he adored me so much and rushed into asking me to be his gf. About 3 months in, I found out he had major anxiety and depression and things started changing. Compliments faded, his confidence died, sex suddenly became a chore for him…. It’s like he had so much going on internally that he hid the first few months. And now I feel alone in my relationship. I’m forced to pick him or my friends on holidays and outings because he rarely wants to celebrate anything. I have been supportive for so long but he’s so pessimistic that anytime I try to speak life over him, he shoots it down and wants to be alone. Not to mention, he now suddenly unsure he believes in marriage or wants kids when… our first conversations he was excited about being a dad one day. Now he is afraid to pass on his depression to another child. 9 months is a long time… do I keep trying to support and miss out on intimacy, wanting to build a family, and holiday big events until he gets better? Or should I end it and find happiness for myself? It hurts not being held and touched much anymore while he’s going through it.

Edit: I’m 30, my clock is slowly ticking, and he’s tried medication and therapy. I just haven’t seen results or change.