How happy our body when we feel very tired after doing restless physical activities. Our body really knows its function to sense its power limit. Our body also absorbs every positivity from a good quality of rest.
However, the situation will be quite different when we are mentally exhausted. Our body feels the urge to burst out and we are not able to enjoy our rest. I know that feeling all too well. And I know why it happens to me. One clear cause is that I force myself to multitask. I am not a qualified person to do multitasking stuff, and when I force myself to do it, I get burnouts.
Anyway, when we are still alive, problems will always happen. Those problems are what make our life worth living. They will make us stronger and wiser as long as we don't run away from them. It is a good thing to choose to deal with our problems because that makes us human. Human beings are always allowed to choose options when dealing with their problems. They are allowed to make bad decisions.
So, when you are still breathing, just accept the fact that problems, easy or difficult, will come to you. Enjoy your time when facing them before you come to your final destination: death.