The thought that the young sister should not marry before the older one is false!

I totally agree with you. It is old and archaic and should not be encouraged.

Sarah; It seems like your sister is both jealous and angry when looking at your "perfect" life.

Unfortunately, anger will only prolong these feelings of jealousy for her. It is best for her to try to let go of this anger.

If any emotions should be felt, it should be pity for herself, not anger, because she may never enjoy life as thoroughly as you may.

It will be good for your sister to develop goals for her own sake, not so she can match up with you or "beat" you.

I know that this is all very difficult and time-consuming at first, but eventually she will become a happier person, and she won't feel nearly as jealous about you.

Having said all that, it’s crucial for your own well-being and further personal growth to realize that you are not responsible for anyone’s life.

This is so true. You can only do your part and she’s left to make the change begin.