It never gets better
Thank you for reaching out. It sounds like you've been through so much these last four years and I can feel your exhaustion through your words. Please know, that should you ever need to talk to someone over the phone or through webchat you can also visit our counselling service here: https://www.beyondblue.org.au/mental-health/anxiety/types-of-anxiety/ocd
Similar to you, though probably not to the same extent, I have also had a difficult couple years. I lost my job in 2020 after four years due to a relapse in my depression. After three years of therapy, ECT and medication however I was able to find my footing however and slowly work up to where I was before. It took time and alot of hope but I eventually got to where I was wanting through patience and commitment.
Unfortunately the road to recovery can be long and is never straight forward but reaching out, like you've done, is the first and biggest step. Anxiety can be difficult to manage, but with the right strategies, you can learn to conquer it which hopefully this will assist you at work. I would recommend working with a GP, psychiatrist or mental health professional but if you're looking for some simple anxiety management strategies you can always start here: https://www.beyondblue.org.au/mental-health/anxiety/treatments-for-anxiety/anxiety-management-strate...
I'm glad that you've acknowledged you are a good person with a good heart. Positive self talk is big part of therapy. While I'm struggling to provide any decent advice on job hunting and looking for work, please know that you can always talk to us and that there are indeed people out there who care.