A close friend of mine is a grandmother, as am I. We both worry about the future. But we have devised a little method to cut the worry. We say that our love--support, caring, acceptance--is like "money in the bank" for our grand kids. Maybe they will have to face great difficulties--in any case, human life is always bumpy. But we're kind of stocking up our love and support inside them. I believe that even after I'm no longer alive that love will live inside the child to inspire courage and happiness.
Sure, I also try to teach practical things. My six year old grand daughter and I walked in the rain to the local cafe. On line, I warned against poking people with the umbrella, as no one likes that. A young lady in front of us smiled and said "I'd like you anyway!" What did we learn, exactly? Maybe just that a cafe is a great place in the rain.
I also understand the anxiety and worry is quite real--and wishing you some peace of mind.