How do I find my purpose when I am good at many things?

The trap with being multi-talented is that you try to reason your way to purpose from the outside. You weigh your skills, map them against meaning, and wait for clarity to arrive. It does not work, because clarity is not something you find by looking, it is something you earn by doing.

The question is not "what am I good at", it is "what will I do the boring middle for"

Being good at something tells you almost nothing about purpose. Skill is fast to build and easy to mistake for calling. What you are looking for is the thing you will still do when it is tedious, when nobody is watching, and when it is not going well. A mood wants the outcome. A passion will do the unglamorous version for six months without needing applause.

So pick one of the things you are good at, not the most impressive one, just one that pulls at you, and do the unglamorous version of it for six months. Not the version people see. The drafts, the practice, the failed attempts, the slow progress. If you can make yourself do that, you are learning something real. If you cannot make yourself start, you already have your answer, and that is useful information too.

Cheap experiments beat long analysis

You do not need to choose your purpose. You need to run small, cheap tests in parallel. Pick three things you are good at and find one real-world problem each one could solve for someone who would actually pay for it or care about it. Not a hypothetical. A real person, a real problem, this month. The one that generates the most energy, not excitement, energy, is pointing somewhere worth following.

Being good at many things is an asset, not a burden

What looks like confusion is actually optionality. The satellite work feeds the startup. The writing feeds the engineering. The skills you built for one reason become exactly what makes the next thing possible. You do not have to collapse all of it into one identity right now.

What you do have to do is move. Pick one thing, do the unglamorous version, and let the evidence tell you what the analysis cannot.