Everyone

I just bought a 99 honda civic with a d15 single cam.

I bought the car put a new headers , brakes, calipers and etc.

I never know how to drive manual so i bought the car and somehow I put transmission fluid to the radiator which was happens to be in a antifreezer gallon. Now I can't drive the car I tried to flush the radiator as much as possible but it's keeps drying. What could he the issue?