Can my account be private?

No, your TikTok account must be public.

Your TikTok account should be public so that your videos can be discovered and not just seen by your friends. The goal of collaborating with SongPush is to share the advertisers' products/ songs through your videos and get as many people as possible to see these products/ listen to these songs. In addition, your videos must be online and visible to the public for at least 28 days. If you delete the videos before the end of this period or switch them to private, you will not receive any payment for your videos.

Please also note that your account must not be a business account, as in this case you are not allowed to use the songs.