Hey @franciscoleonar, welcome to the Spotify Community!
Each spotify account is meant to be used by one person with syncing across as many devices as you want.
The best you can do for sharing an account with someone is just creating playlists with each person's songs and then using that.
You can find more information about multiple devices here.
Another option you may be interested in is the spotify family promotion.
This will allow you to get cheaper premium for you and your family.
Hopefully this was helpful!
Tony
Hey there you, Yeah, you! 😁 Welcome - we're glad you joined the Spotify Community! While you here, let's have a fun game…