The paper airplane that I made had too much lift. Lift is what keeps the airplane in the air by pushing it upwards. The paper airplane that I made go straight up into the air instead of forward when I threw it. Other than lift, there are thrust, drag and gravity. Thrust is the force that pushes the plane forward. Drag is the force that pushing down agents the plane; it is the opposite of lift. Planes are also affected by gravity, which pulls towards the ground. One thing that I am considering to put in the wood plane is having the wings in the middle of the plane it an even amount of lift and drag. Another thing is to have a tampered wing shape.
Here is a picture of my Paper Airplane: