Hi Ez_bois243,
Welcome to the modular world :-) Most has already been said by Kel and Farkas, so please follow/consider their advice, that's spot on.
One little question, just as a kind of food for thought... how are you going to output your sound from your modular rack to your (I assume: external) mixer?
What I am trying to say is :-) That you might want to look into an Audio Interface module. Unless I have it overlooked in your rack. If you have a guitar somewhere laying around and want to use that here and there for some input music into your modular system as well then you might straight away want to consider an Audio Input/Output interface module; otherwise just an output interface might be sufficient.
As already mentioned, take it easy, just a few modules in one go, and start experimenting and playing around with them and enjoy the modular journey into the sonic-cosmic :-) Kind regards, Garfield Modular.
For review reports of Eurorack modules, please refer to https://garfieldmodular.net/ for PDF formatted downloads