I'm lurking through these posts. I just found you this AM. This seems so similar to the practice of an ofrenda, which is fairly common and practiced in Mexican culture relating to el DĆa de los Muertos. I think studying your family and the history is great to learn about your roots and having ideas of how to progress, if that's your thing.
I'm not sure that I'm a witch by any means, but I very much believe in the power of intent and positivity. I believe in the power of your internal thoughts. So I try to keep positive self talk and positive goals in mind as much as possible.
IE: "I'm staying healthy and happy." Vs. "I don't want to get sick." I keep my thoughts on the positive spins of healthy and happy.
I keep my thoughts realistic and goals progressing but attainable.