Troubles, like babies, grow larger by nursing.

 Troubles, like babies, grow larger by nursing.

Learn to throw the first punch as soon as a trouble presents itself.

This instant cut short its intensity.

 Before your fears, thoughts and worries take over; take a jab at the problem.

Sometimes we can’t solve the entire problem immediately.

 But take a small action immediately, instead of later.

It will solve the entire problem this way because you have already taken the hardest step of that problem - the first one.