Awww Liv, I often feel the same way, and it's hard when we make a post and no one responds. I have anxiety at the mere thought of making a personal post right now!
I understand what you mean about therapy too,I have only had one positive encounter with a therapist, and I don't know where she is now.
I do believe that you (we) can overcome anxiety by using relaxation techniques like you mentioned (deep breathing) among other things. I find that exercise works wonder for my mind, as well as my body, so I try to get in at least 3-4 days of exercise. Anyway, I hope you begin feeling more like yourself again, and find something that works for you personally.
Love,
Zen