acura legend 95 gs problem

Hello
I buy an acura legend 95 gs last year, and then right after that it have some problem.... the idle on the temperature gauge was very high and start to smoke, the heat wasn't working so i take to a import shop to fix it. It came out that the oil went to the radiater and mix with the green liquid inside....so they have to clean up the head of the engine...TOTAL$3700 to fix it:frown: :frown: :frown: :disappoin :disappoin :disappoin then 2month later, i start to have issues with the car again:shakehead :shakehead :shakehead ,when the car is warm up and then i stop at a red light....the car is cheking, making the engine sound go up go down, like it's gonna die but not.....and on the HWY it won't pick up speed if i step on the gas it will take a couple time for the car to move:screwy: :screwy: :screwy: I refill the transmission since it was low but didn't change anything!!!!!!!
PLEASE, can somebody help me with my legend, i really like this car but cannot afford it anymore to pay the shop to fix it:frown: :frown: :frown:
Thanks