help!!

[04trailblazerkid]

havent been here in quite a while and now i believe i have a problem...

today on break at school i went to get food and on the way back i passed a student going up hill. admittedly i had my foot in it as i love the sound of my car. i get back to class and the kids says my car was smoking. i thot oh well maybe its just cold bla bla bla... well jump ahead and im towing my buddys truck on a trailer went about 50 miles and on the way back with the empty trailer i notice my temp gauge is really hot. im on a really narrow two lanr road and litterally have nowhere to pull over so i lett off the gas and just cruise it.

i was wondering if there should be anything to worry about?

a little about the car. its an 04 trailblazer with 52k on it... i got it at 34k miles 8 months ago, i deliver pizza and needless to say, the miles i do have which isnt alot, are very rough miles.

also what can i do other than regular maintanence to help my little baby last longer??

[Evan]

you need a thermostat probably