Good start.:thumb: You may need to get a few tools. Get a strong sharp edged ruler. Use this to for your bends,it will make sharp corners. I recommend using UHU brand glue. It is available from Michael's craft stores, or from many online retailers. It is very tack. Wait for each section to dry thoroughly before preceding, this allows you to build the next part, using a straight edge. You may want to fold little short strips of paper and use them to secure the corners. They go on the inside, and will help close up a corner very tight.
You are off too a good start, keep building! Have you chosen your next model?