It is doable in one session.
I started Jan 8th doing Sophia classes and took as much of the degree as possible to transfer. March 9th I started the flex path. I learned that writing to the rubric was mostly the way to go as well as checking out the helpful hints videos put in by some professors that would spell out exactly what they want. 125 days total start to finish. Total cost right now is under 3k (2758)
During this time I worked full time 48 hrs a week in a warehouse. I would create outlines during the day for an assignment and then finish when I went home or wait till Saturday as a study day to do them.
I'm only writing this to possibly encourage someone who is thinking about it. If you can be disciplined to work a bit each day you can absolutely accomplish it.
Cheers