Crazy Uncle Wei Zi.

I sympathize with your situation, and your worry is not unreasonable;

Euphemistically told grandma, but it is estimated that the elderly at this age are paranoid and it is difficult to have an effect;

Your uncle is a little crazy, not necessarily stupid; You can pay more attention to him, find a breakthrough and let him relax;

Adjust the atmosphere more at home; When not at home, let my sister talk more and do more things, and act as a bridge between grandma and uncle.

Your dream shows that you are under great pressure and has a bad influence on you. Let yourself relax, as long as you try your best, even if there is something you can't do; Besides, grandma and uncle, mother and son have much stronger ability to accept and bear contradictions than you think.