Yeah @xNotM4x , learning data stores might be an overwhelming experience for beginners and a tough pill to swallow. We’ve all been there, believe me!
But this is an important challenge if you want to script by yourself instead of looking for a code in the web. Accept that it will take time, and go there step by step until it works.
Once again, Profile Service is the easiest I’ve seen so far. Read the whole Wiki Page about the method (basically takes 10 minutes). There is code with the comments as well!