Dryer In Need!

When I first place the wet clothes in the dryer, the dryer will run through the normal cycle. However, if the clothes are still a little damp, I try to turn the dryer back on and it will not run at that time. I will then wait for a while, normally an hour or so, then I can turn it back on. At that time, the dryer will then only run for a few minutes, no longer than 5 minutes, and then shut down and will not restart. It appears that the dryer senses that the laundry must be dry, so it won’t start. During the time that the dryer is running for that less than five minutes, the clothes inside seem like, to the touch, that they are extremely hot (while still being damp) and the front of the dryer, right above the door gets really hot to the touch. This just happened a little over a week ago, it was working fine until that time. Not sure where to really start with the repairs. However, as it is close to the holidays, really don’t want to call out a repairman to pay their fees. Please help in determining if you think that I should replace the heating element, thermostats, motor, or whatever to make it work. I really would like it to work.
Thanks for all of your help!

Kim