There are a few sayings that I try to live by to keep my sanity. Having looked after and dealt with my wife's debilitating MS for the last 17 years with no chance of her ever being the same woman I married 45 years ago
1. if it doesn't kill you it makes you stronger
2. there is always someone else that is worse off than you
3. a teaspoon of honey catches more flies
4. unless you have something good to say about someone say nothing
5. don't turn the other cheek because some people will always try and slap you down
As a child I lost my dad from cancer, and a few friends over the years through it, all I can say is keep thinking positive and live life to the fullest while you can
PS: The guiding issues I have one night perfect the next it could be any one of a number of things, bad seeing , bad guide star, wind (the terrestrial type), PEC issues, etc etc , all these things in some ways enhance the enjoyment of the hobby as you research and learn what may cause these little gremlins to appear.