I'm not sure what "major things happening in your life" means? Do you mean the possibility that your grandmother is developing dementia? Even if that does happen, it could be a long slow process of decline, and one that your parents will be able to deal with. Unless you are committed to staying with your family until your grandmother's eventual death (and after that, your own parents will be getting old...it's always something) then you should probably make your move as planned.