Why does it seem like nothing can stay good in life?

I know we all go through ups and downs in life , but what do you do if your life is more down than good? Yea we can keep trying to pull ourselves back up hoping for the better , but how can you keep pulling yourself back up , if you are always going to be let down eventually The older I am getting the more I realize what’s even the point of reaching for happiness anymore because all it does is turn to shit eventually. It’s like a vicious cycle that never ends in my life. Things will go good for awhile and then out of nowhere pure shit again and again , I have always been a hard dedicated worker busted my ass for years to keep my head above water to live peacefully and contentedly , to realize that can easily be taken from you , , realizing working for other people isn’t promising whatsoever. Realizing we are just a number to most of these companies that will easily replace you or get rid of you , no matter how good you are at your job, it doesn’t mean shit. Realizing all this world only really cares about is money and trying to survive. Part of me wants to say Fuck it all , but unfortunately I can’t do that at this time because I have kids’ that I am trying to get on their own 2 feet before I do anything for myself. Now I am back to square one, I got laid off again from my job yesterday , and the hell I went through to get that job , after my previous job laid me off as well was a nightmare , so I honestly don’t think I have it in me anymore to go through this shit again , for me to keep my home I have to make a certain amount of money , if not, I have no choice but to sell my home with nowhere to go , , so I am back to applying to jobs like crazy again. but I don’t have much time to do so this time around , since I was trying to dig myself out of the hole I was already in the last time , This Job market is a friggin nightmare , Oh God Help Me please
Why does it seem like nothing can stay good in life?
Post Opinion