1995 Honda Accord My car is in worse condition since I had

I had my car towed to a repair shop because it had ran hot and I was afraid I might had blown the head gaskets. I had head gaskets, head surfaced(was not cracked), radiator, thermostat, coolant, spark plugs, motor oil, filter. When it was time to test drive it, I was told oil was running out of the car. Then I had repaired crank seal, T244 timing belt and GAT 186 timing belt (Balance shaft). I paid $1700.00. As soon as I left, I went straight to get a smog check. My car failed due to emmission. Carbon minoxide and timing. I then took my car to Goodyear to get a diagnostic test. The car could not be tested due to some electrical situation. The alarm also stopped working. Which was working before. Which diagnostic test should have been done when I first bought my car in? The car is shaking really bad and the idel is 1500. It stops @ every light and esitates to shift into 4th gear. Please tell my whats wrong with my car? I am desparate and I think I've been, had