[m_km]

Speaking from my experience - I had the exact problem. Quitting caffeine helped me a LOT. My heart rate went down and anxiety problems became almost non-existent.

If you have problems relaxing, please give Yoga Nidra a try - https://www.youtube.com/watch?v=zLJu3wQA1Ko

[connectsnk]

Yoga worked wonders for my wife too. She also suffered from anxiety issues