Why isnt me car running

What is your question?

I was driven down the interstate when i heard a ticking, everytime i would give it the gas. To save what i had, i put the car in neutral and coasted to the next exit. After i turned the car off and noticed oil splatter under the hood, it wouldnt turn back over. I had it towed to my house the following day. Theres hardly any water in the radiator and milky oil on the stick. It will only run and stay running if i keep my foot on the pedal.thinkin its a head gasket, already bout the stretch bolt and head gasket kit.