On Bluestacks, you can block the installation of random apps by not using the default home launcher (Gamepop).
Since I'm using Nova Launcher, I don't have any random applications installed
Have you upgraded your equipment?
If you could screenshot your team and upload them for example to imgur , (they have a great app) it would help us in helping you.
You can also consider enhancing some of them with a few attires. Don't use too many of them since you will need plenty of attires in the BWMG depot once you get it.