This site really isn't well designed for that.
One workaround to consider is to post a Discussion with one topic of interest, whichever seems most appropriate. When you think it's worthwhile to branch your thoughts, include a link to a related Discussion describing that other topic of interest. Copy and paste URLs referencing each one. At your option continue the first Discussion, or terminate it with a link to one where you're getting answers that continue to advance your thought process. It's a "do it yourself" way of multithreading working within this site's limitations.
Those who choose to participate will really appreciate those links so that they can follow along, but please remember to close a Discussion you're no longer pursuing with some sort of closing statement like "closed but not answered" or "this answered my question" or whatever works for you.
Unlike most other user-to-user support sites this one actually works best if you create multiple Discussions, each one containing a simple concept. Expanding upon that concept within that Discussion is understandable, and that's the way other sites work. It just doesn't work here for the simple reason that it becomes difficult to separate "noise" from a lot of well-intentioned people who start to reply to other well-intentioned people with related or unrelated concerns until things just become a jumbled mess. The resulting effect on those interested in helping you is they drop off, which doesn't help you.
Keep it simple, even if you have to create multiple Discussions. Just please don't post the same question twice. You'd just be starting all over again.