Hello Friend, Good that you are seeking a help. Seems you pretty much clear with problem of anxiety and fairly trying your best to control it.
If you are still struggling to control your thoughts, better take a professional help. You really need to know the real root cause to identify the right technique to overcome.
Next Steps
Consult a psychologists directly or online. Feel free to reach out to me online through Practo app chat for further detailed evaluation and suitable solutions that you can follow practically to overcome this anxiety issue.