To be or not to be

Compromise- it requires enormous strength of character but when overdone it will ruin one's sense of self. One of the toughest questions in life is when to stop compromising and start living.One needs to know where to draw a line.I have seen both the extremes in life. I have seen people who don't give up their end and thereby break relationships and I have seen people who do all it takes to maintain the relationship but lose themselves in the process. This makes me wonder is it so difficult then to actually sit back,reflect and decide what is more important to you and when?