You should include fire provisions. The number one thing that happens in urban environments is a power outage. Replacing that reading material with a few lighters, matches, and a 100+ hr candle would be useful. You can memorise the material anyways. I'd also say replace your flashlight with a tactical one. The one you have is garbage. My last suggestion is to add Polysporin or another wound disinfectant. Get rid of the bug spray if you need to make room for it because bug spray ultimately does not work.
If you're uncomfortable using a gun then don't let anyone tell you you need one. No point in carrying something that will just get taken away from you and used against you. My 2 cents worth as an ex-soldier.