If I believe God made me, then He must have made me for a purpose. It can’t be simply that I live happily ever after, though there’s no reason to think He doesn’t want us to live happily and ever after. That’s not a purpose; that’s an end result.
If we want to know God’s purpose for making me and you, it does no good with starting with me and you. It does a burrito no good to start with “What are MY goals?” Only the Creator, the inventor, know for what purpose they created or invented something.
We can speculate about God’s reason or we can listen to God’s revelations. We can read and ask.
It’s in Christ [discover identity and purpose through relationship with Jesus Christ] that we find out who we are and what we are living for. Long before we first heard of Christ [predates us!] and got our hopes up, He had His eye on us, had designs on us for glorious living, part of the overall purpose [larger cosmic scheme] He is working out in everything and everyone.