@Hello from Russia
Many of us want purpose because we feel lost in our lives, or we feel like what we are doing is pointless and so there's a lack of passion. Many of us look for purpose, but we are actually searching for an escape from our current reality.
If I were you, I would think about what things you would stop doing or start doing if you DID find your purpose (no matter what your purpose may be). Then actually start or stop doing those things. This is because you have to be ready to put the work when you figure out your purpose.
That being said, your life purpose has to be something that's bigger than you. If it is bigger than you, then it has to be about others in some way. It wouldn't be worth dedicating your life towards otherwise. I can't tell you what it is, but here are three questions for you to think about that will help:
1. Who do you want to help? Answering this will help you figure out what you need to learn, and the kind of people you need to understand, and the kind of problem you want to solve.
2. What do you want to have materialistically? Answering this will help you figure out your desired degree your impact
3. Who do you want to be? Answering this will help you figure out the kind of principles and habits you want to adopt, and the kind of people you need to hang around to adopt those principles.
Hope this helps!