Take advice with a grain of salt. It exists only to justify the decisions of someone else.
The best advice you’ll ever receive is your own. Unfortunately, too many people wait to realize this and try to live up to lives of others, lives that ended up lost.
Your gut is as strong as it is now as when you were born. You already know what interests and the kind of things you want. You just need to do a bit more exploration to see them out.
A good talk here and there with someone you admire helps, as does having a mentor, but important decisions aren’t going away. It all comes down to a matter of will.