Well said by many.
I think one of the genius aspects of God's design for us mortals on earth is he gives each of us an expiration date--and no one has any idea whatsoever of when it will be.
So it pays to make the most of whatever days you got.
Fretting, fear, anger, and resentment are not places I like to play. So I might suggest if you don't like what is going on you either find a way to like it using all the tools at your disposal to make your life good, or seek an alternate path which will be rewarding to you. Getting 'stuck' in malaise I don't think a good place to be.
Life is too short to waste going down blind alleys. Especially when they are marked as such by others.