Quran says again and again
“And future will be better for you than the past” (93:4)
“If the hurt comes, so will the happiness” (94:5-6)
“So remember me and I will remember you” (2:152)
Don’t stress over things you can’t control. Hand it over to the Almighty. There’s no need to spend sleepless nights thinking about your problems. It’ll get you nowhere. He will easily take care of things if only you’d trust Him. He’s the only One who can turn your life around.