Answer:
Keep track of people who doubt you.
Step-by-step explanation:
The poem "If" is written by Rudyard Kipling in 1895. The main theme of the poem is inspiration to those who face opposition in life by others. The poet conveys how to deal with such people when they are opposing you in a life situation and when no one is trust you. The people will oppose you and will not trust bu you have to keep allowance of people who opposed you. The poet says you must keep track of people who doubts you.