I have a raven that my brother put his hands on and now the app with all the little dots at the bottom center of my home screen is gone. I need it back.
It would help a lot if you gave more information on what phone you're using and if you're using a 3rd party launcher. I'm guessing you are if the App Launcher is missing.
Most of the time you just tap and hold on the empty space (or any of the spaces) at the bottom of your home screen and select the App list. You should also be able to access it via the Menu button if there's one in your phone (or long-pressing the multitasking button if it's a newer phone).
I agree with SpookDroid, if the app drawer is missing there's a big chance you're using a custom launcher and the right steps to get it back will depend on which one. If not, you could try a reboot and see if you get it back.