Dont give up, but how?

I just read that “rock bottoms will teach you lesssons that mountain tops can never — dont give up”

What does rock bottom mean?? Is there any limit to that rock bottom? Whenever i feel like i hit the rock bottom another thing hits me. My partner whom i really want to spend my whole life with is facing soo many things from december 2024 Well actually from 2-3 years bur now from december its more hard. He is struggling a lot. From few months we never had any happy moments First is the long distance relationship and second is not able to meet or do proper calls because of one hit or the other this year non stop. We are at a stage where we do not have time or mood to do something together or just have a call and laugh together i think it has been months since we even smiled or laughed together. Sometimes he want to break up because he is struggling a lot and doesn’t want to drag me down too and now im stuck with the fear daily that we might at some time do that. We both hit rock bottom No proper sleep maybe 4 hours sleep daily That too filled with nightmares daily …no joke dailyyy nightmares. Days filled with tension Will this ever stop?! Will we ever have a happy moment again? I dont even know how to try and lift him up daily I am confused and blank and scared