I'm still trying to get down the London system (I'm a bit of a novice). Any explanations are appreciated. - As an added note, I'd like to do an early attack on the black king. I know there's a way to mate in 18-20 moves - may not happen, but I'd like to understand better how and why I might do that, and at least keep more active pieces in advantage, even if i sacrifice a bishop and a knight. I'm thinking i should move Be5 and push the pawn on Nf6, but how do I clear my rook line and especially the black pawn on G6.
PS - this is like my most important problem in life in chess right now, so I appreciate advice.