Avoid accidentally turning off the smartphone?

I would like to know if there's a possibility that avoids accidentally turning off the phone. I bought a Huawei Mate 10 pro. This is a bit bigger than my previous one and I start the phone 3 times a day accidentally new when I have it in my pocket.

I have the huawei mate 10 lite

But I do not have such a problem

In the settings I would not know anything about how to turn this off

Buy cover maybe it is better

I can only confirm that I have bought a case for my cell phone. Every day, I took around 300 photos of my trouser pocket. The corresponding keys are somewhat protected with the case and can't be pressed sooo easily.

Thank you for your confirmation