Through using KSP I have learned a lot about rockets and flying in space. During physics I learned about Delta-V but now I really saw how to use it in flying through space. Direction matters a lot in space because your direction is the main thing that allows you to get into orbit around Earth. My rocket was not an SSTO, as my rocket had 8 stages, not 1. With only 1 stage I would have to be using solid fuel, which would not allow me to control my rocket.
I had also learned a lot about Newton's laws but now I really got to apply them. By shooting fuel backwards the opposite force propels you forward in space. Also because there is no gravity, you have to much more precise in your movements because your rocket won't stop because an object in motion will stay in motion. Also the nav-ball helps you a lot in positioning your rocket correctly to get into orbit.
When you were at the periapsis in space you were going much faster then at the apoapsis where there was very little orbit. This made it easier to steer at the apoapsis, but you needed to be much more careful with your movements so you didn't go out of the orbit and end up orbiting the sun. This was due to the orbit effect on the planet. I managed to end up orbiting Earth through a proburn maneuver. I learned a lot about rockets and space and I hope that building the rockets will continue that.