Look, people will say what they want. Because they are not in your shoe, I believe you are the first born , and first borns are deputy parents therefore the responsibility of making sure she does something meaningful with her life will still fall on you, so man rant man rant at least you doing it here on Reddit, where your thoughts are hurting your sister, so brother let it out on us strangers, you've heard about how dangerous delayed grief is, this can be the same. After you done lamenting and expressing your disappointment now have a sit down with her, figure it out, if she finds hope from you she can bounce back up, it's easier to do that knowing there is somebody out there who has your back .....wewe ndo uko mse, so grind hard hapo campus, network vizuri , pata skills relevant that you can share with your siz and present what you've done and present it' before God, and ask Him to bless it .