It's like reading something my husband wrote about me!
I hear my husband say everything you are quite frequently. Probably even weekly.
You probably don't want to hear this, but hearing all that at all frequently can create even more anxiety. We can become anxious about being anxious, which in turn leads to a definite lower libido.
If you're in therapy, this is something that should be addressed. If it hasn't already, it needs to be brought up. I think my husband and I feel connected and have that need to be sexually active with one another to be connected, so I can understand where you're coming from. Your wife may even feel the same way.
Rather though than tell you about us, what I can say is that you need to really listen to her. When she does speak to you, especially about what is making her anxious, upset, sad, depressed.... really listen. Listen to the words she chooses when she's speaking to you. Sometimes being complimented over and over can really make the meaning go away. That doesn't mean stop complimenting, dear God no, lol, but find other ways to make her feel attractive, beautiful, "acceptable".
No one on here is going to be able to advise you like the words from your spouse can. Anyone with anxiety desperately needs a supportive, loving, sympathetic, generous and helpful spouse or loved one. It's so much more difficult to deal with our idiosyncratic anxieties when we don't have that help and support.
I'm sure there are things that you guys as a couple need to work out. I know you're in therapy, but there have to be other ways during the day and week and month that you can show your wife that you're helping her out. That you're supporting her.
If you're not patient with her, you're going to make matters worse. It's not what you want to hear, but that's how it is. Anxiety, depression and stress all lower libido. If you increase the anxiety by bringing it up, you're digging your own grave. If you know, or can find out, what makes her anxious and help ease her daily anxieties... then try bringing it up again. Or maybe schedule a real sit-down about sex and it's importance to you. Don't ask for it that night, or even week... but let her express herself without feeling like it means talking about it = having to feel pressured to do it.
Wish you luck!