You are using pumpkins for a farm so you should be all in on fortune in my opinion. Use enchantments for something other than fortune only when the questing requires it.
In particular, I see lots of people wasting money on fancy swords and armor early game which will only slow down your progress.
Also, don't sweat any of this too much since everything will be replaced with iron at some point.
By the way, you are using a cow dropper right? Farms are good for additional money but the cow dropper is where I would focus.