Is acceptance the key or the lock?

There is a constant knot in the pit of my stomach. Hidden in the dark murky place where emotions mix and churn as they evade logic and reason. Holding onto one end of the knot is the person I am now, tugging at the other end is the person I want to be. Accepting I have to let go of the person I want to be is in theory the pathway towards the chronic illness jackpot of psychological flexibility.