1992 Jeep Cherokee Car rides rough/bottoms out easily.

On my 1992 cherokee, the ride is VERY rough. When I hit a bump, It can be felt all the way through the vehicle and it even shakes my rear view mirror crooked. What should be replaced on my suspension to create a smoother ride?

Also, when I go over large bumps my car bottoms out way too easily. I will be going 10 mph and bottom out.

(Sorry to post two topics at once, but they are both very pressing issues on my car.)