Hi Coast guy,
Taking care of your mother at home is really a great job!
Regarding your anxiety and depression please be aware that it's really not easy to overcome on your own. You need support from your family, close friends, and professionals. If you feel it's hard to walk out the way on your own, do not wait, do not hesitate, seek for help. You can share your story here or give BB hotline a call, you can also see your GP to ask for some referral.
Hopefully you'll get better and better.