Tell me about it. When I was writing the DMZ report in Korea for the President, SecDef, JCS and etc. (on a manual typewriter) if I made any kind of mistake it went into the burn bag and I had to start over. No wite-out on that kind of document.
When I got my first word processor, though, I lost my fear of typos and just started hammering the keys (literally, because the old manuals had better than an inch of key travel). Being able to proofread and edit before you printed it out was a Godsend!
When I am done with the material I write professionally, those galleys go to the printer. and it is glorious to be able to do all that without printing a page until it is ready.