Dealing with Depression and Anxiety

So I have suffered from depression and anxiety for as long as I can remember. I’ve been successful through school and 6 years of practice in the elder law area. But things are just getting worse for me and I feel like I am inadequate to do this work anymore. Not to mention I feel like I have bitten off more than I can chew. Does anyone have advice on where I can go from here? Is it feasible to go in house with my experience? I just feel awful as I’ve spent my whole day sitting in my chair ruminating and getting no work done. Should I quit the legal field all together and look for a more menial job? Any advice would be appreciated. Thank you.