The tension you feel, the stress you feel, the problems you have are all illusory. They appear in your mind due to fear and result in an emotional and physical echo in the body. The constant fear you feel is due to a simple misunderstanding. That there is an "I" as a separate person living in a world. This apparent separate "I" feels constantly under threat from the dangerous world "out there" and tries to protect itself with an array of barriers and shields.
But what is being protected? Nothing!
Look closely and see that this separate person does not and never did exist. You are that which witnesses the whole show.
Your apparent life flows freely and there is nothing that can be done to influence it or affect it in any way. Nothing ever goes wrong. It is all just happening. So relax, let go and enjoy the ride!