Lmao I’m the last person who should be answering this question, since I’m an outlier for sure. 
I’m kind of free-spirited when it comes to writing, I only finish 15% of it tops, and I currently have about 7 MS Word or Episode stories that I’d say I’m “working on.”
I started in August and I’m partway through ep5. 
But in that time, I also wrote 90% of the draft screenplay for the sequel. Why? Because. 
Story 1: 4 eps.
Story 2: ~10 eps.
Story 3: ~10 eps.
^ The first one doesn’t actually have 1 plot, it’s a series of shorts. The second two follow one intense, two-hour event, with some assorted flashbacks. If your story is going to show development over weeks or months of the character’s life, yours may be different.
For my particular case, I need to release mine when the story is complete (partly to be certain I finish, and partly because I’m making up the setting as I go and need to make sure the canon doesn’t change between ep1 and ep10 lmao). I’m undecided as to whether I should release the eps 1 per week once I’ve got the entire thing ready, or just drop them all with a big KERPLOP like novel writers do lol.
So to “normal” people writing continuously, 1 per week is the golden ideal. This is very difficult, though, if you either a) make quality episodes, or b) have something resembling a life. So do it how you feel, maybe have a couple eps completed but unreleased when you first publish, to give yourself a headstart. 