Should you private videos that didn't do well?

I'm so back and forth with it. I'll private then unprivate and back and forth.

Basically I've started to actually make content on tiktok since I work in marketing but this is my personal account for fun. Since actually trying (back in Oct) I've had three 1 million view videos, one 2.3 million, a couple 100k+, a couple 10-50k and then the rest are duds (like at least 50 of them) and are between 300 and 400 views.

The 300-400 views I end up just making private after a week. It looks silly next to a video that has 100k views.

For algo purposes should I keep all videos available? Should I delete them? Should I keep them private?