I think you might be reaching for the stars a little hard right now with what you will be able to get away with, at least until you have a lot more time under your belt.
However…
You can try to do a custom heated 11 x 11 calibration. It is kind of wonky especially to set your z-offset as the touch screen will not assist you for this process. The touchscreen jog menu does not allow for very fine adjustments like luban does, but you could always adjust the z-offset as a whole afterwards as well from an active job.
This routine will sample your bed in 121 places. It appears to be the most we can get away with in terms of processing power.
At this time, I hesitate to recommend anything beyond a pre-heated calibration as opposed to an actively heated one, I am still testing how the heater affects the sensing range. You are of course welcome to try.
This is a complex problem with many factors which the community is actively sort of working together on to resolve in various different ways. There are some custom firmware adjustments being made, some accessories to help level on a glass bed, replacement build plates being designed and tried, and many other things being tried right now to improve this issue.