Problem solver, sharing knowledges, most importantly bring joy into studying with efficiency of studying

I have done 11 years of Maths and advanced Maths in Vietnam, 2 years in college, got good grades while also having time to hang out, and plenty of free times. Down to the root of reality, to be good at something is not only to know it, but know how and why is it like that. Brain manipulates what you perform and how you perform. That where we are going to improve so you will stand by your own no matter where and what. Studying is joy not sadness. I want to study not I have to study.