Can some please tell me how to make my members see diffrent values on their page, I run a contest site and I want each member to be able to see their own scores on their homepage
You can do this without code by using the setup as shown on this page here.
https://support.wix.com/en/article/filtering-database-content-displayed-on-your-page
As for through code you can simply add a text element on the page that you want the score to be displayed and set to be either hidden on load or collapsed on load and connect this element to the score field from the dataset that you are using to save all members current scores.
You will need to check through code if the user on your website is logged in or not.
https://www.wix.com/corvid/reference/wix-users.html
Then, if the user is a logged in site member you can simply have your code set up to show this text box element and then only the specific users score should be shown in the element.
https://www.wix.com/corvid/reference/$w.HiddenMixin.html
If you search previous forum posts, you will find ones that should help you with this.
https://www.wix.com/corvid/forum/community-discussion/hide-and-show-function-before-and-after-login
https://www.wix.com/corvid/forum/community-discussion/hide-show-price-if-user-is-logged-in
https://www.wix.com/corvid/forum/community-discussion/show-element-when-certain-user-is-logged-in
https://www.wix.com/corvid/forum/community-discussion/solved-hide-box-when-user-is-logged