Suffering, surviving and thriving..

 I am going back to existentialism again. I realize over the recent times, when people have asked me about suffering or grieving as a process I never really understood what it meant. For me it is a part of life and life does not stop for you to go through these processes. And the pace is not in one's control and nor is life so you let it happen and you learn to live through it or with it. Now this again is very existential in nature as it basically is saying to live is to suffer (from Nietzsche's Twilight of the idols but i found an article mentioning it was rephrased by someone else do not find it now) and to survive is to make sense of the suffering. 

Surviving is mere existence, what one wants to do is to thrive which is not the same thing so can one say to live is to suffer and to thrive is to make sense of the suffering I do not know. But I am looking into it and it seems suffering and thriving can coexist so it is not surviving.