In game I didn't notice that I play 4way (missed that have sb too). So I like cbetting less, but don't think it matters a ton:
CO 19/15 8% 3bet weak regular (marked as weak player) - have like 20% fold vs cbet over 200hands
BTN standard TAG
SB Creative TAG

Flop standard
Turn I think we gotta have some bluffs to our value (some KK AK, AA. more TT,55,QJ), overbetting(potbetting) is fine but we accomplish pretty much same with 2/3 and can put some mergy valuebets
River when we get called twice, his range is KT, some AT and 55, QJ, some Asxs,AQ. Even though he might have few KQ(as weak player) but I believe bluffing river to fold KQ,AQ, and AXss is ambitious. Any other river I would likely jam