Driving down the highway and started hearing a ticking noise. My oil pressure was at 83% it said. After 5 miles the low oil pressure stop engine warning came on. The coolant temp went from 172 to 200. I pulled over immediately. I checked the oil and there's oil on the stick. I recently had an oil change and have noticed a leak. I tried turning it back on and it was a very loud knocking. I shut it off and left it. I'm not sure what to do. I really don't have the money to tow it but fear driving and completely wrecking it. Also I'm a woman so simple advice please. Thank you!