Hello,
I started a track long time ago (1-2 years ?) and after completing about 10-20 tasks I had to stop due to personal circumstances. I would like to start again but from scratch including the exercises I already completed.
What is the way to make all/some completed exercises uncompleted ?
Hi @newuser10, welcome to the Exercism forum! 
On the track overview you should be able to reset your track progress from the three-dotted menu on the right:
You can revert your solution to the initial state in the online editor, if that’s what you want:
If you’re looking for a way to reset the full exercise, as in delete any published solutions, I’m not 100% sure whether that’s possible.
You’re welcome! Have fun with the exercises!
