My (24F) Mental Health is Affecting My Relationship With My GF (28F)

As the title says. I’ve been fighting depression my whole life, and it’s left me emotionally numb. I’m currently seeing a therapist and psychiatrist, but I’m still in the part where things have yet to get better. We’ve been together a year or so, and it’s been very difficult for me to be sure that I love her and want to be with her. I’d like to preface that we’re both trans. I’ve medically transitioned and she’s just starting. I’ve also only been in one relationship before and it was extremely unhealthy. I think our love languages are either different or mine are kinda suppressed, same with sex drives. It’s been causing a lot of friction. What are some ways I can assure to myself and my partner that I do love her and want to be with her?