Hi, I am an old forum member, but havent posted in over 2 years (had to make a new account). Anyways...My coolant has been leaking in my 2.5 manual transmission 99 contour. I bought a product by the name of "bars leaks" and poured it into my coolant. Started my car, and it ran for about 30 seconds and then killed. I dont know what happened, but it just killed and wouldnt start again. I then proceeded to add more coolant to try to dilute the product some. I did accidentally overfill with the coolant, but that was after the fact that my car died and would not restart. I have no idea what to do with this, and I can't even tow it to a shop the way because it wont start. Does anybody have any advice as to what i should do, and whether or not I can even fix this myself?

Thanks a ton for any help, Chris.