human life is an equation

you have some steps to complete 

1. take birth
2. baby
3. child under parents
4. child coming out
5. puberty
6. adult
7. marriage
8. give birth
9. adage
10. old is gold
11. take death.

every body goes thru these steps and there may be some exceptions like you do not marry or do not give birth. but the equation remains the same to all humans . the order is also the same. 
we all know about this. now its upto us how we enhance the life on every step and find meanings to it. its a known fact that step does come back once you skip to next level.most people can plan in advance for each steps. the people upto 4th steps are to be guided by the parents. and the rest of the steps are guided by the social net.
 i feel that there are some factors or ingredients that affect each step of life.

1. environment you are into like your parents, friends, school etc
2. choices that you make
3. perceptions that you make out
4. unforeseen changes that you come across
5. and most important , the wishes you dream