Can you ever master the ups and downs of a road called life

I had one of the worst days of my life. It was one of those days when you think that nothing is going to come your way but then BOOOOM ! and you can not go any further.

It made me think if its possible that one can get used to the ways of life ! Can you reach a point where anything bad that happens to you doesn't affect your state of mind ? You just know that this is what life is all about. Going up and coming down !

On the flip side, if you don't feel unhappy about something bad that comes your way would you be excited for the good things in your life ?

People always talk about getting rid of the negative emotions but still they are emotions. If there is nothing negative how can there be something postitive.