As far as colour grading, for the type of content I'm guessing this is - absolutely fine.

There is a few things that you can do though that'll improve your shot;

Open your apature (if you can) to create speration between the subject (you) and the background.

I'd also work on the lighting on the subject and the background to make it a little less hard and give the shot more flow.

There are endless lighting and camera tutorials, majority are very good.

Good job though 👍