@Davjlee know all of that :D and I'm 11, thanks to my pilot handbook!

Nice!

One thing that you should start considering about Yaw, is that, it needs some sort of counter surface.

Add small surfaces to the normal wings that work like roll controls but respond to Yaw input.

Yaw is difficult for sure; one of the most challenging parts of building a fully functioning aircraft. The majority of my own fighters do not have good yaw function, or I removed the yaw in favor of other control surfaces to achieve similar effect. However, I do have planes in development now that have functioning yaw. Research the planes with good yaw and learn why the yaw functions. Larger planes vs. smaller planes etc.. Dihedral in a slight upwards configuration (true dihedral) adds stability over manueverability; however, can be helpful when learning yaw. There's a lot of good info online about "positive, neutral, and negative stability vs. the 3 main axis of flight which you may find helpful even when building here on this platform. I know there is no straight answer and that is because, stability in each axis depends upon stability in the others as well. Various wing configurations (Delta, forward swept, etc..) will absolutely affect yaw and pitch function and vice versa. Work with each 3 in small increments to learn more about each. I personally think your plans is great beyond that, with decent stability as well. Interestingly enough, I can fly a real plane, do great in a simulator; but I am still working out details in the "art" of building a truly successful model. Good luck and keep em' coming! :) :) :)

if you have the Overload XML editor, you can add more yaw surface, but make it smaller so it isn't seen. I don't have a device compatible with the multiplayer servers, so I don't any active ones.

@BagelPlane thanks for the feedback, how could this be improved? also do you know any active multiplayer servers?

Looks nice, but the yaw shakes a lot.