RE: Help
Check that your Z-probe (PINDA or SUPERPINDA) ist at the correct height from the print bed. Prusa recommends using the smooth part of a zip tie as a gauge for this, I think. Best read this article for this. Then do a 1st layer calibration for your print sheet until the square at the end of the print is tight and even. Judging from your image the live z adjust must be a lot lower (bigger negative value) than this.
RE: Help
Do first layer calabration from menu on printer then share pictures that
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RE: Help
I found this article to be very helpful wrt this problem.
https://muppetlabs.co/3dprinting_mk3_live_z_calibration.html
I use the provided mk3_3x3_25mm_square_bed_level_test.stl and do live z adjust 9 times. Write down the offset as you go. You can usually get the first layer set correctly on one pass (ok, sometimes 2 passes).
https://www.printables.com/model/40729-parametric-bed-level-test-generator/files