I suggest shaving when you are alone in the house. Use a dry hand to shave with and do a good job of prepping the beard area. Then only shave a small portion under the sideburn as suggested.

Go slow. Take your time. Be careful.

Most of the problems people have is because they do not have a shave ready razor, do not actually know how to strop, and do not know how to shave.

Accept all of these possibilities and expect nothing more than to gain a little experience.

DO NOT EXPECT A GOOD SHAVE.

Most trepidation is rooted in the unknown. Read up and study a bit. Then learn from the experience.