Hi...
It's a 3 year long issue cannot be relieved fast. Please seek a psychiatrist along with clinical psychologist. Paychiatrist will help with medication and psychologist with help with therapy.
Psychotherapy will help you to change the wat you think, which will further help you to avoid and manage your anxious thoughts.
It's processed treatment, complete your treatment and feel better.
Next Steps
take immediate appointment with above mentioned mental health professionals.. online sessions will also help.
Health Tips
You can start immediately some physical exercises....best and easiest is skipping and suryanamaskar.