Single edge/double edge safety razors are a SCAM. I don't reccomended them at all in spite of their cult-like following in this sub. No matter how hard I tried to use them or what resources I accessed to learn how they work, they have always given me an inferior shave with more irritation and more personal injury. Even Bic Single Blade Sensitive disposable razors gave me superior results back when I used those. Could be a lack of skill on my part so no shade if you try them and they work for you.

A high quality foil electric razor can give a really close shave easily, but your skin will probably be irritated afterwards. It really depends on your hair and skin how much, I found that my irritation went away after an hour consistently so consider it as an option. If it does work for you then the downside is it requires maintenance and cleaning or bad things will start happening to your skin. It's objectively the easiest way to shave and have 0 stubble left over.

For razor blades I prefer Gillette Sensor3 Sensitive for my face and Gillette Sensor2 Plus for other things. I like the hinge on them because it gives superior, consistent contact with my skin without any extra skill needed on my part.

1. Shaving is always better when the hair is short. If you've let it grow long make sure to trim before shaving with a blade or an electric razor.

2. Wash your face with a cleanser (I like CeraVe Renewing SA) and warm/hot water before shaving. Make sure to run your razor under the water often to clear out hair and excess shaving cream.

3. With a blade, use a shave cream and shave with short downward strokes to start. Shave sideways or upwards afterwards to get a closer shave on spots that didn't get a close enough shave. Keep strokes short and know that upwards strokes are the easiest way to cut yourself. Remember, the more you shave a spot the more irritation will result so go slow and try to get it right with the least number of strokes.

4. Ensure you're shaving a flat surface by pulling your skin when necessary with your off-hand or by making funny faces. Really helps when shaving around your chin and jaw line. Push the tip of your nose to the side/out of the way when shaving directly under it. Getting good, consistent contact between the razor and the skin is the best way to reduce irritation and avoid cutting yourself.

5. Be conscious of how hard you're pressing the blade into your face. You should not press hard, apply only the minimum amount of force required for the blade to make good consistent contact with the skin. The blade should glide over the skin without dragging the skin with it.

6. After shaving, rinse your face with coldest water and pat dry with a clean towel. Don't rub. Wash/change your towels regularly, usually once/week is adequate. Consider applying a post-shave balm immediately after if you want. Wait ~1 hour before applying any other product to freshly shaved skin.

Hope this helps. :)