I could not conduct a heavy-loaded reviewing my study these two days. Maybe, I still need to work and could not have a quality reviewing...

Actually, when I got back to study and I can really highly concentrate on it even if I was distracted sometimes occasionally. However, once I paid more effort after my study and I was not really totally happy. Yes, I was happy that I paid effort on my study and acquired more knowledge. But, I quite like the feeling of concentration and I quite like the feeling concentration on paying effort to the thing I care and cherish. Studying CS and related fields was good, becoz I was interested in it. However, I concentrated on it too much...

It raised up one point: will I be too concentrated that I forgot something also important in my life?