I've been shooting slr/dslr's for more than 30 years. I swap lenses all the time, thousands and thousands of lens swaps, I've put them on from the wrong point and jammed them and have to force them back off. I've dropped my cameras on bedrock from neck height, had tripods fall over lens first onto asphalt. I've broken a thing or two. I have never damaged the mounting ring on the camera. And I've only seen one damaged mounting ring on the lens side of a plastic kit lens.
Line up your marks and twist, press the button and twist the other way, and dont worry about it, its very unlikely you will do any harm if you aren't literally smashing things against the mounting ring.
I've been shooting slr/dslr's for more than 30 years. I swap lenses all the time, thousands and thousands of lens swaps, I've put them on from the wrong point and jammed them and have to force them back off. I've dropped my cameras on bedrock from neck height, had tripods fall over lens first onto asphalt. I've broken a thing or two. I have never damaged the mounting ring on the camera. And I've only seen one damaged mounting ring on the lens side of a plastic kit lens.
Line up your marks and twist, press the button and twist the other way, and dont worry about it, its very unlikely you will do any harm if you aren't literally smashing things against the mounting ring.