Josie,
I know exactly where you are coming from. I'm a Christian that struggles with anxiety, hypochondria, depression etc. and it's difficult sometimes to find comfort in the Lord. I struggle with it at times, but I can tell you that He really does comfort me and strengthen me when I am at my lowest...and it's always when I completely give up myself and just lean on Him. At the times when I am closest to Him I feel fearless, and anxiety-free! There are times though, when I feel myself slipping away from Him...or Him moving away from me, to test me. It's actually been happening lately...I've been relying more on my own strength than on His, and that's when I am unable to control the depression or anxiety. I get down also at times, because I don't have many friends and ever since anxiety struck me almost 2 years ago I've kind of let go of people. I just find it hard to connect with people, even my boyfriend at times. I like how you said that you can't wait to go home and be with Him...I feel the exact same way...but I know that He will call on me when my job here is done. If you are still alive, Josie, then your job is not done. He still has some plans for you. Don't let the panoramic thougts of anxiety disctract you from Him and cause you to be unable to see or hear the things that He is trying to show you.
You'll be in my prayers friend :)
"O Magnify the Lord with me, and let us exalt His name together. I sought the Lord, and He heard me, and delivered me from all my fears." - Psalm 34:3-4
One more thing, I disagree with your therapist...if God has blessed you with a gift of helping people who are down, then that is something you should do. God blesses those who bless others.