1995 Cadillac EL Dorado struts or shocks

Suspension problem
1995 Cadillac El Dorado V8 Front Wheel Drive 150000 miles

My car feels like your driving a old war tank every bumps just rattles no lights indicate suspension problems people say I need the shocks or struts replaced and only a dealer can do that. The isnt worth taking it to a dealer but it is worth putting a few hundred bucks into it. What do I need shocks or struts and the front end is worse then the back also can it be done by someone other than a caddy dealer and what is the price range. I am a woman and this site has helped me so much thankx