Sadly, matches of low level are indeed rare and hard to find currently. If you'll have some more patience, you can reach higher levels and play regular and even PvP matches.
Strange you didn't get queued with anyone in the "Little flags for juniors" event, but this might be for one of the following reasons:
- Your rank is low, which prevents the system from letting you get queued with other, higher rank players.
- Your equipment is poor and of low grade (gray or white).
I'd assume that the second reason is the main one.
There are equipment grades, and every equipment can be improved (staying the same color). If you have been farming any of the Punk's drugs or if you already managed to get some Collectors carbonic foam\Black Roger, you can sell these at good prices and buy yourself some better items, once you get some better items you'll be able to start playing PvP.
If you need any more tips or advices, you can contact me ingame and I'll explain you everything you that interests you about progressing in the game.