More car trouble

I drove to work yesterday noticed my engine light was on, (actually its been on for a week now..)
When I stopped at a red light a mike away from kohls I saw a cloud of white smoke coming from my hood, I panic and attempt to pull over and I almost hit a white suv coming up on my right. I slow down and feel my car trying to shut off, so I hit the gas and continued on to work. At work
Alot of people said it was probably just overheated and needed coolant/water. Well I tried that... On my ride home the needle went back to chitty within ten minutes of going just above 40. I pulled over and realized how bad I had to pee, so as I'm waiting fire my car to cool off I find a water bottle and attempt to pee into it sitting down... Fail.. I got pee on my pants on my seat and on my hands, I managed to get most of it on the bottle but it was too funny not to mention. I prayed for God to help me get my clunker home without it shutting off on me. Thank God above, I'm home and I just called AAA to have it towed to my shop in hoover. Lol my mom told me I'm really fortunate that all the repairs mt car had needed were minor ones, I don't call spending over $1800 on a car minor... But she is helping me pay for alot of the repairs thank God