So, I need to build it up again from scratch. Better not, I will try to 'hide' the bad things somehow and be careful next time ....
As DLively said, and see here:
I'm sorry but just delete this map, it's way beyond saving.
If you worry about deleting a/ especially
that map game design probably isn't a thing for you.
After all, doing this thing/ level right now from the start using the grid should take you less than 30min (or maybe even < 15min or < 10min). Just for reference: In my game I have 40 levels and I have completely deleted way more than that and re-made some of them up to 4-5-6 times, only resulting in much better levels and consequently a better game.
