How do you save changes in Team HQ on Skate 3?

I have tried going to save park in the create tab (the main menu)- I went out of Team HQ, went back in and absolutely everything had been erased (everything that I had changed the colour of had gone back to the colour it had when I first got Team HQ). It doesn't save that way that I did it. I've tried other things as well but every time I go back out I have to go and do it all again. ☹️  Skate 3 has an auto-save option, shouldn't it save after I have made my changes? I can't do anything at this point- I can't go out of the HQ or anywhere else, and I can't turn off my Xbox 360 (which at the moment is probably using a lot of power just sitting there). Surely there has to be a way I can save my changes this is so frustrating for me...   😕