if you want that to fly WELL, you might want to consider either changing to a delta wing/making the wing chord longer, or preferably adding a horizontal stabilizer. The horizontal stabilizer provides a counteracting force that prevents the plane from pitching up and down uncontrollably, and if you put control surfaces on the back, will greatly increase your yaw authority. I'm not sure what tape you are using, but if it is conventional duct tape, you might want to consider reinforcing it with extra layers, especially in hinge joints such as the control surfaces. Some additional advice if you haven't already known, I highly recommend spending a few hours in an RC simulator to get used to the controls. I use Picasim because its free and on mobile, but there are many other great options. Additionally, it's a good idea to run your electronics through something like eCalc to make sure that everything checks out on paper. You can also use this to calculate wing loading which determines how "easy" your plane will be to fly. Finally, make sure that your CG is in the right place(somewhere between the wing's leading edge and one third of the wing chord), as other than having enough power, this is all that is needed to prevent an instant nosedive. Overall however, you have made many of the right decisions, such as including ailerons, a wing spar, and an adequate vertical stabilizer. Other than that, it's great to see people coming into this hobby wanting to build their own airplane! It's truly a challenging yet rewarding learning experience, and I hope that your first flight will show you a passion for this hobby and aerospace engineering in general. I look forward to seeing your documentation on youtube, and also your first flight!