Put Option Information

Hello you very amazing and knowledgeable people. I hope you are doing well.

I have been researching into Put Options i know these benefit from the fall in share prices. Does anyone kindly know how they are set please as an example? Can any kind of stop losses or anything be used please to minimise losses, like for instance when swing trading? I would be really grateful if anyone could help with advice on this.

Thank you very much for your time and any input you can give. Sending you lots of good wishes.