How to hide only my old posts on Facebook?

[pri✍]

I've afraid there's no magic wand to wave and put everything to Only Me. (there's to put to Friends)

If you concern about
• your post, pic or just text ➤
go to Activity Log ➤ Your Post ;
• your comments ➤ Activity Log ➤ Comments
• pic you posted, tagged, shared ➤ type in search bar "Photo of Me";
• pic you're tagged/shared ➤ type in search bar "Photo by Me";
scrutinize one by one to pick the ones you want to and change the Audience Setting to Only Me.

If you know, say it's in 2010, then add that in the search, eg.
"Photo of me in 2010".

While you type those on the search, a pop-up options will appear, click the one that suit your goal.