i am very scared rn idk how to use this engine pls help me

You still have 4 days. Thats enough to learn the basics. Watch Brackey's 'Make a video game' series

do you know how to use c#? Thats the programming language all scripts in unity are built on. Id recommend either learning the basics of c# or reading up on documentation if you need help https://docs.microsoft.com/en-us/dotnet/csharp/ https://docs.unity3d.com/ScriptReference/

i kinda know how to use c#, but im already in a team

if u want to join i can ask