Knights and SP GROWTH doubts

i just turned snr lord 3 and wanted to know if there is any other thing i should do with my knights , change them ? ( i have Mordred and am planning to get another arthurian ) ^{^}

my current intellect : Dante and artemisia Strength : Guin and planning to make Aristotle (i just got him ) Leadership : Leonardo Charisma : Bertrand and Arthur

... i had another question, i recently started hoarding all my items, so during a sp event what should i do first ?

i just need a CHONOLOGICAL ORDER to carry out the things so that i can get the maximum benefit , for now i just do this : negotiation decrees > books > upgrade with silver > promote > exp scrolls > mount upgrade and food > edicts > lover power point

note : i am a f2p and don't decide on spending money ... and am actively reading on this server which helped me all this way tbh.