Don’t feel bad when someone you pushed up to the top fails to pull you up to the top too. And don’t think you are worthless.
You are priceless. You are one of those few who don’t need helpers to get to the top. You are a fountain, you are a source.
So when you are not remembered or appreciated, keep going and don’t stop being there for people, you are a fountain, you will never run dry and you can’t be stopped.