If im not over 18, but still want to make money off TikTok, is my parent on the same account all i need to make money?

It’s a long shot to get paid any significant amount of money from TikTok. I’d suggest finding an alternate route such as Twitch or YouTube!

"All I need to make money"

No. You need engaging content thousands if not millions of people want to watch.

I'd worry about making content before thinking about how that'll make you money