I'm really starting to get and accept that drawing or painting is in a way, a one way street or like an escalator. Digital can train what I see as a negative mindset is that you can turn back when you should be seeing a drawing as only going forward. Make a mistake? You could erase partially, but you should see every decision as going forward instead of turning. If that makes any sense.
tl;dr I'm really starting to see a process of drawing as always going forward. Any mistakes of any kind should just be regarded as just part of the process and either learn to incorporate them or just accept them if they're minor enough.
You have a greater chance in life of experiencing the lazarus phenomenon (Being declared dead and then living again a short brief period later) than making some earth shattering masterpiece of a work.
