Spooked

Hello! i am a BRAND NEW bird owner. As in I just received my bird within a few hours. I have a few large concerns and I feel like I can share them here. #1 my bird cage is what the store recommended although it is very small. It’s 18x10x18 and I fear it doesn’t allow the bird full range of movement. #2 her introduction to my home consisted of her getting away from me and me chasing her for about 8 minutes till I let her sit on my bed while I sit by my door. #3 after placing a towel over her and getting her in her cage she hadn’t moved at all. I fear that I’ve really messed up this introduction. #4 she hasn’t moved at all since being placed in her cage. When she was placed in her cage she banged all over the sides. We have a larger cage although we planned on returning it due to not having all the products promised. Any help appreciated.