The_King This is why don't force yourself for the target contract. If your pace is 2.000/day. Try to use Patreon for monetary for example. You will have your time without a strict contract deadline.
Use the money to pay editor, etc but you need to be VERY popular first before all of those. 20 Chapter is enough for stockpile. That would guarantee your reader.
I only edit 1 chapter everyday for the same reason. This give you a chance to re-read your chapter to help you repair if you find some plot holes.
I fell sick when I edit 10 chapters in marathon+making cover. That is 12+3 hours++ of editing. I learned my lesson and didn't edit too many in 1 day. I prefer to write newer chapters similar like you.
It is hard to get contract from WN. :D So it won't be easy, there is less than 10 who get contract and I don't see a editor cited in those novels.
Asking Sphookk would be better. You already got an extra reader. Do not reject him!