Advanment race datapack

I want to setup a datapack for me and my friends to use that will change a scoreboard variable anytime someone gets an advancement
I do have a few parameters though
When a player gains an advancement, that advancement is no longer valid for the other players. This makes players prioritize getting the advancement before other people 
I also need it to give a certain amount of points for different advancements (ex. a normal advancement is worth 1 point while defeating a boss is 10)
This datapack is for the 1.21.4 version of minecraft. This is my code which features my attempt at adding the [Stone Age] advancement:
scoreboard objectives add Points dummy
scoreboard objectives setdisplay sidebar Points
execute as @a[advancements={minecraft:story/mine_stone=true}] run execute if data entity @s[advancements={minecraft:story/mine_stone=false}]
Please reply with any knowledge you can give me!