im losing coolant when the car runs for a bit its leaking onto the motor

Have a shop run a pressure test on the cooling system. That should determine if you have a coolant leak and where it is.

Get the cooling system pressure tested by a reputable shop and have them do a chemical test to be sure the head gasket isn't blown. If you have excessive smoke out of the exhaust it's possibly an internal problem. Regardless, take it to a good shop and have it diagnosed.