As you can see, this forum contains a lot of posts with C# questions, so looks like it is not so easy as you think it is.

I work with C# every day, and still I need to google some stuff or ask a question here.

Further, C# has some many possibilties, which is impossible to learn just for one school project. So if you need to create a bit more complicated project than you probably are now doing, difficulties will come by it self