YOU SAID:
Today I am going to do my best
INTO JAPANESE
今日は頑張っていきます
BACK INTO ENGLISH
I will do my best today
INTO JAPANESE
今日も頑張ります
BACK INTO ENGLISH
I'll do my best today too
INTO JAPANESE
今日も頑張ります
BACK INTO ENGLISH
I'll do my best today too
You've done this before, haven't you.