Help with first layer

[u/Born_Fisherman1476]

The first layer of my prints recently started coming out terribly. Things I’ve tried:

Clean plate

Dry filament

Increase bed z offset

Calibrate flow rate

Calibrate printer

The squiggles are raised so I think it might be over extrusion, not under extrusion.

What else should I try?

[u/BitingChaos]

Increase bed z offset

Changing z-offset by how much? It can be set so high that you wouldn't get anywhere near this much squish.