Building Military numbers

So I notice that while I have decent villager production (for my 900 ELO), I am losing games because of lack of military production once I get to castle age. (Also Franks are OP ;) ) I usually have a 10 to 12 vill lead but lack of military just takes away my advantage. Any tips on increasing military production? I have a hot key for select all TCs and I'm able to maintain vil production by constantly pressing it and adding Vils However, though I have hot key for select military buildings I tend to not use them as frequently. Any tips on how to internalise building Military in castle age? Feudal I do alright since it's part of the BO.

I'm thinking of internalising military production by selecting a mili building n creating a unit immediately after creating villagers. Hopefully that internalizes production. Anyone have a better idea or I just need to be more aware in-game and remind myself to create military.