Im so lost

[88keys]

That wasn't a very good explanation from the lfs.

Whats the last reading you have on the hydrometer

Wait until the water clears before continuing to correct salinity.

Rinse your hydrometer really well.

You are going to need to remove a good amount of the water(i agree save it), then you will need to top up with ro/di or distilled. Then check it again.

I would try to get the temp up to 77-79, 72 is pretty low.

Are you having any other issues you need help with?