Aimbot Logic C++

So im trying to make an Aimbot and I already checked out a bunch of source codes and videos but i cant really get it to work. When messing around with Cheat Engine i found out that 2 Floats are the Aim-Location basically, theres a y-Value and a x-Value, when i froze both I wasnt able to move my Crosshair at all. So my first question is if there is actually 1 Value that fully describes the Aim Location, that i dont need to work with x / y Values, if that makes any sense. Then there are so many different Values that are you "View".. Im pretty confident i need to choose the ViewAngle but what is the ViewMatrix then? I cant really find a description of those anywhere. Would be really nice if someone could help me out.

View angle is the angle at which you character is pointing. View Matrix is everything you can see.

There Are 3 Values, x,y,z. each one reprisents different angles u the player can move his crosshair. z (roll) must always be 0 or u will get a untrusted ban. then u calculate the angle between u and the guy, then write said angle to x and y. profit, it may be a QAngle (a struct/class/whatever including a x,y and z float) that u could write completly over?