Again, this isn’t the sigil itself. It’s just a drawing of a symbol. The sigil is the idea, which I made into a symbol that looked right to me at the moment. If you look at the previous post, there are several other shapes and potential symbols, any of which could have worked. But this one looked right — looked “magical” — and so it went with it for the final version.
When you’re making your own sigils, go with the one that feels the most “right” to you. It’s a symbolic representation of something that’s deeply important to you specifically, and you are the only person who can “activate” it, or imbue it with meaning. Listen to that inner voice that says “That’s it. That’s the one.”