@FullMetalMachinist Thanks for the answer, yeah I really want to know the whole mathematics of it before I get to use the aid mods, because I'm planning to use this to pursue rocketry as a hobby and probably as a profession too.
So I understand that the calculations would work better for orbit and factoring aerodynamics, gravity loss and vectors would be tedious. But do you have any formula I could use so that I may be able to launch my vehicle to orbit in the most efficient way? Any tips?