Hi Gayle! Welcome to TN from a fellow car gal and proud 95 owner.
As for your first problem, check out your egr valve. It's part of you idle air control and sometimes it sticks causing the car to idle very rough and (on mine) stall. PM me if you want more info on that.
As for your 'knocking' sound in the back, it may be your control arm. Sometimes the bushing goes and when you go over a bump or such it makes a 'knocking' sound. If you jack up the car on the side of the noise and shake the tire (back and forth) and hear the sound, it's probably the control arm. Until you get it fixed, don't do any high-speed driving. And to cure the 'knocking' that's driving you nuts, just crank your music.

Hope that helps a bit.
Oh, and what color is your 95?