Here's an alternate interpretation from the one that Silvertide provided

(Silvertide's answer is fine.  This is just another way of expressing the same idea.)

A lot of times I feel that the pace of life presses on me so heavily that I cannot breathe.  I want to stop and take a breath.

I want to take a breather.

A lot of times I feel that life is very busy and I can't take a breather.

(I'm assuming you were trying to say that you can't breathe because you have a tight schedule so I changed some words around. A "breather" is like another word for break, you need some time to breathe so it is a breather.)