When one utilizes the youthful age then there is always good memories to hold on to in old age. Old age is supposed to be a blessing that everyone longs for but just like your peom implies, when we waste our youthful age then the only things that go through our mind in old age becomes regrets of what and how we could have done things better.  As a youth it is never too late to move to the right track and utilize our youthfulness well. 
Nice one friend, keep steeming