Branches/Pulling/Github questions for a newbie

Hi,

I'm a bit new to this github thing.
I forked the repo and now I see 2 branches to choose "master" and "espruino-master". I made some changes to my code and I think I was in "master". Now I tried to pull changes at the original repo, but I can't. It says "This branch is 353 commits behind the upstream and has conflicts that must be resolved.".
I opened a "pull request", I think that means, that my changes are going to be merged into the original repo and then I can pull again.
My changes are very subtle. Is there a way to get back to the "current state" of the original repo, and do my changes there, so I can keep up to date with Gordon's changes?
Or... I mean... I'm a bit lost how to work with github.

Same! Worked this out just last night.

Have you tested 'Fetch upstream' when in your forks 'master' branch?

If that doesn't sort it for you, I'd say do:

1. Create a new branch in your repo 'mybackup' from the branch you've made commits/changes to ('master' in your case) . (Select branch 'master' -> then enter 'mybackup' in the text input field -> 'Create branch: ...')
   Or/and download your fork repo as zip.

2. Set up git and gh (github) in your terminal/command line.

3. Take inspiration from this medium article: How to reset your git branch to a previous commit (both local and remote)

4. Maybe keep your 'master' branch pristine and create a new one where you work on your 'subtle changes'.

5. Get files you added/modified from backup and paste them back into your new branch (or 'master' branch).

There may be a better way to go about it - but this worked for me.