reboots after fully loading

Okay, my Samsung Prevail reboots after about a minute or two of use. The inly way it doesn't is if I quickly go to apps management and uninstall facebook, googleplay services, samsung push service, mobile id, and then disable googleplay services and samsung push service under the "all" section. Then I can get about a half hour or so without cutting off.
I have done wipe partition and factory reset a hundred times to no avail. Once it reboots, everything I erased is back on. I keep getting screens in the beginning telling me push and different google stiff is not working. Any help would be most appreciated. Btw, I have no other phone or computer here, and no external memory card. Thank you in advance for your help!

Thank you, but is there any way to do it without a pc? I'm actually on it right now.it will work once I uninstall all those apps, then I get about an hour before it resets. Once it resets, everything is back though.