Of course I dindt work all shifts for the block but reward looks so tiny for 3 days of cranking with approx 37Th/s.
Welcome!
This is because you have just started "ramping" the 5nd. The "ramp" time is around/near 15 days, after that, you will receive
full rewards. I am near 11 days, and this reward, was bigger than my first two rewards combined. Be patient, it gets better!