Yes, same here, I have no trouble holding the temp in the cheese pot while the curds are setting up.  Just put the lid on and the milk will hold the temp for an hour, easy.  It might drop a degree or two but that doesn't bother it.  You're supposed to use a double boiler, but honestly I don't.  I have a gas cooktop.  I heat it up directly on my cooktop and with gas, when you turn it off, it's off, not still holding so much heat like an electric burner, so I just put the lid on and leave it to sit.  If you have an electric burner, you'd probably need to move it to sit on a cold burner or something, just to get it away from the ongoing heat.  Same with the double boiler, even with the heat turned off, the hot water in the boiler is continuing to heat the pot.

Don't feel bad, though, I've had tons of incidents involving temperature problems.  It took me a lot of practice, and some self-restraint, to learn to get the temperature just right and be patient with it and tend it.  Distraction is a cheese killer!