2nd day of being Chef Nana

Mum told me to cook sayur sawi in oyster sauce. I've never cooked this,but I've cooked something similar to this before and roughly I get the idea what to put in, and the sequence.So,this morning woke up early to prepare lunch for my dearly uncle. I cooked, and Mum was in the kitchen too, watching my every move. Huhu.Trouble is, Mum cooked using instincts while I measure EVERYTHING. How much oil, how much onions etc.I guess that's the difference between home science and science stream student.