1992 Toyota Camry Vibration

I've had all motor mounts, belt, plugs, plug wires, timing belt, AC blend door actuator, wheel bearings, rear hub bearing, sway bar bushings, sway bard links, hose assembly, rear strut assemblies replaced in the past year. After they replaced that long belt, the car felt like it was idling too fast. I was told, "that was OK. It's just because it's a new belt. The vibration has gotten so bad that the dash and doors vibrate when I put the car in gear after starting. They keep telling me that it's just an old car and it's going to have rattles and things, but I know no car is supposed to vibrate that bad. It was my mother's car, hardly driven, has it's third set of tires (simply because the first ones dry rotted and the second ones were cheap ones that I had replaced) and since my mother passed and I have had the car, I've put about 20,000 miles on it in the past two years. Please, HELP.