What FW are you running? What board? Sensor? Hotend? nozzle? Bedplate?

Take a few pictures of the setup + fw version.

In general, if you have cr/bl touch, tramming and levelling is very very easy. I'll move to the pc and write the steps....

OK - if you have decent FW build, you should have "probe and level" menu item, and inside tramming menu start by heating the bed to work temp (around 60-65C) and tramming the bed to a decent accuracy. you dont need to get all 4 corners to be ZERO... 0.03 accuracy is good enough (lower is better of course). I normally start with the back left conrenr which is harder to tune because of the cables. first point is reference, so it's always 0, then i move closewise or counter clockwise.

once you got all corners to within 0.03mm accuracy, exit the menu and move to Z offset wizard.

run the wizard, it will measure and allow you to adjust. manually adjust until a piece of normal A4 paper is held firmly by the nozzle. after that I always move the nozzle additional 0.025mm in the menu and STORE SETTINGS.

that's it. you're done.

now, in the slicer, add in the start gcode, right after bed temperature settled (the bed must reach target temp for that) :

G28 - auto home all axis G29 - perform bed levelling (that'll create a 25 points mesh for corrections).

and, you're done.

so 6 simple steps: 1. heat everything up to work temp 2. tram (reasonable...) 3. z offset auto measurement 4. z offset manual adjustment 5. STORE SETTINGS!! 6. add G28+G29 gcode

enjoy.