顾此失彼

Am I being too ambitious, having too many commitments at one time?
Knowing that I have about less than a year left before I start a gruelling regime which might take me 6 years before I 重见天日, I have to do all those shit that I want and need to do.

But is it seriously worth tiring myself, I wonder.
我不要分身乏术。
我要出类拔萃。