I also overheat, then get too cold after exercise.

For the overheating, I find that if I drink more water, I feel a bit better. I also run cold water over my wrists to cool down quickly after a workout.

Cooling down quickly causes me to overshoot, so I need to have a clean, dry shirt to put on, and a sweater or sweatshirt, handy to cope with the chills.

I don't like the sweating either, but I try not interpret it in a negative way. "No one cares if look like I'm sweating." "Sweating is a good way of removing toxins in the body. " That sort of thing.