Hey there @Sheinn,
Thanks for reaching out to the Community!
You can make all the playlist you create Private. What this means is that other users won't be able to find them through the Search option in the app. More info here.
You will still get recommendations by us if you keep listening to music as normal, just make sure the setting Private listening is disabled. If you enable this the algorithm won't collect data on what music you tend to enjoy and won't add new songs to your recommendations. You should also avoid using a VPN.
Hope this clears things up 🙂
Don't hesitate to give us a shout if you have questions.
Hey there you, Yeah, you! 😁 Welcome - we're glad you joined the Spotify Community! While you here, let's have a fun game…