Congrats on being retired
@DocMontana . I'm not too far behind, thank goodness.
Let me offer you four key points regarding shaving with a straight razor:
1.) They must absolutely be properly HONED and STROPPED. There are stones made (both synthetic and natural) for honing (sharpening), and then leather straps (strops) for stropping. The misconception is that stropping sharpens a straight razor. Not really. Stropping is meant to straighten the edge for a shave. It may mildly put a finer edge on the blade, but most of the benefit of stropping is blade straightening, not sharpening. Honeing (stones) are for sharpening, stropping (leather straps) are for straightening. Think of the edge of a straight razor as getting thinner and thinner to an almost impossiby ultra thin edge that can actually bend and curl just from normal hair cutting. The Strop straightens it out between shaves so that it cuts the hair cleanly. Honing (stone sharpening) is for making sure the blade is sharp. There are "Barber Hones" that are designed to quickly put an edge back on the blade after a few dozen shaves. These are inexpensive but necessary. But we're getting way ahead of ourselves with that conversation.
2.) The beard and skin must be properly prepared. Cleaning your skin, adding a per-shave product (if you want), and then properly lathering with a soap or cream that is applied in the right consistency is paramount to an irritation and nick free shave. You may still have a few small nicks (weepers), but with the proper prep, most can be avoided. I rarely nick myself with a straight razor.
3.) Hold the razor at the proper angle and let the blade do the work. NEVER push the blade. A properly honed and stropped blade will pop wiskers off like a hot knife through butter. You can't MAKE it cut. That's a recipe for disaster. Hold the blade around a 30 degree angle for the best compromise cutting angle between agressive and smooth. Keep your skin taught. Learn to stretch your skin where needed. Go slow. Be careful. Never get in a hurry with a straight razor.
4.) If you are using a Shavette (a razor blade in a holder that looks like a straight razor but is a manufactured blade in an straight open holder) then you must open up the angle a bit when you shave, perhaps to 40 degrees or so as a benchmark. Real straight razors have a more forgiving shaving performance than the razor blade Shavettes. I tend to cut myself far more with a Shavette than I do with a true Straight Razor. They are far less forgiving than a true straight razor. However, because Shavettes just need a new razor blade to perform, they are a good alternative to the man who does not want to learn honing nor stropping. Just pop in a new blade in your Shavette and you are set.
I posted this before, but it's worth reposting, Here is what I'd consider one of the best "Intro to straight razor shaving" videos. It's Lynn Abrams doing the video. He hits all the points for beginners in one succinct video.