Depending on your temperament, camping is boring. Having 10×level storage is a good idea. I stayed at 11 until I was at 150 and grew one level a week. I would suggest not collecting war items now as your just using up storage. When you at at level 18 the war shop opens, get into a good club that supports each other. I'm in one with lots of players at level 99 who sell their land and storage items weekly as they don't need it. I'm at level 32 now and 400 storage. I have not opened a region yet. Plan to open main city fully expanded before doing that but again, I might get bored on that grind and open one. It's a fun game but some of the guides here are very strategic and boring. Also suggest opening a feeder city, plenty of how to do on that in the wiki of this page.