It’s harder than you think, isn’t it? You’re still going to do it because it’s mostly an unconscious gesture. But there are things you can do to change this habit and protect yourself, and it’s important to stay healthy and keep others healthy.
Carry tissues or a handkerchief (remember those?) with you always, or wear a scarf or Buff around your neck. (I love Buffs. You can pull them up over your nose and mouth, keep your hair out of your face, keep your neck warm, protect your thyroid from WiFi/5G, etc.)
As soon as you become aware of touching your face, immediately repeat the same gesture but with a tissue, handkerchief, scarf, or Buff over your fingers.
This will work much better than “don’t touch your face” to train you to become more aware of touching your face! When we hear “don’t x” we hear the action “x” more clearly than we hear “don’t”. An action is something to do, even when we desire not to do it!
So you’ll touch your face unprotected, and then touch your face protected. And…what’s been unconscious becomes conscious.
Keep doing this, and with repetition, you will remember that you want to just touch your face with protection, and you will begin to omit touching your face unprotected.
The more you do it, the more the habit becomes ingrained.
Wishing you all the best in these trying times.