Can’t tell if the plane is dangerous or not

Posted by ActuallyAtrocious@reddit | aviation | View on Reddit | 8 comments

200 hours in and when I’m flying this 172 at a flight school I struggle to maintain my altitude a lot of the times because the rpm will change +-100 rpm. It doesn’t happen rapidly but will change 10rpm every second or two, it happens every flight. I’ve never experienced this in a plane and I’m worried it is going to fail on me. Am I overthinking??