First time DIY dentil crown moulding. Need help

I haven't realized how hard dentil crown can be, but I tried my best to get until here (images attached). I tried to cope but it was way too tough with dentil so I ended up doing 45deg. I know the corners still have a good bit of gap and some areas along the moulding where I plugged in pieces.

Question is if I can move forward by using wood filler, caulk before I paint or rather take the L and spend another $150 for another 30ft of dentil crown moulding and do it again from my lessons learnt - like doing corner pieces first and run the middle pieces flat?

I really want to fix this than start all over again tbh

https://postimg.cc/gallery/HbW2WdW