Delete or keep this channel?

Hello!
I opened a YouTube channel once where I did top 10s.

It was in French but I has accumulated some hours already (like 30, nothing crazy) and it has an age of 6 months.

Even if it's low, I wanted to know how to use this channel to start uploading in English.

I heard somewhere that deleting the videos will remove the views. Is making them private an option if I wanted to keep the views and channel age?

Flip/Exchange it for a channel with English oriented content & fanbase.