I think happiness comes from overcoming challenges. Maybe your challenge is to find gratitude. I often remind myself how lucky i am not to be living with a family of 15 Russians in my 500 sq ft studio apartment. Kinda like the "eat your supper, there are starving children in China" parental admonishment of the 50s, 2000s real estate version.
Depression and age have diminished my physical health, which - whats the word? contrarily? - have bettered my mental health to motivate me to reverse the effects of entropy. Not as easy as it sounds, unfortunately, ha. I hope you will join me.