I have read everything I can and have found myself here out of desperation for something to work. I'll give you my info on what we do right now, in hopes that you can give me some info on how to even start this EASY method. It is going to turn everything upside down for a while, so I am really hesitant at the moment, but DESPERATE for something to work.

My LO is 5 months old in 3 days. She is exclusively breastfed and has no schedule/routine whatsoever. She is super high needs - must be carried/worn/nursed for ALL sleep. She eats very often, on demand. I have a low supply, basically only just enough to keep her semi-satisfied, so I am worried about scheduling feeds and reducing my supply. Here is our day, by guesstimate as we don't really have a schedule at all.
10:30ish - Wake
10:45 - Eat in my lap while I eat breakfast
after a little while she usually falls asleep nursing, as this is the only way she will sleep, if I remove the nipple she wakes angrily
12:30ish Wake if asleep, Eat
1:00 Activity - kick n'play mat, jumperoo, errands, flirting/chatting
3:00ish Eat, fall asleep for a little while
4:30 Wake, Eat again
5:00 Activity
6:00 Eat, fall asleep
7:00 Wake if asleep, spend time with Daddy so I can make dinner/shower/prevent insanity
8:00 Get fussy and nurse off and on in my lap until she finally falls asleep until we go to bed, at which point I change her and bring her to bed and she promptly and easily nurses to sleep, waking every few hours to re-attach if she's fallen off the nipple, sometimes to actually eat a bit then go back to sleep.
She falls asleep frequently throughout the day, surely because she is OT all the time. She only has short bursts of time where she is interested in any kind of activity. She is almost constantly chewing/sucking her hands if she is not eating/sleeping. I cannot nurse her to sleep and then get out of bed, she wakes after 30minutes max.
I basically accepted this "routine" (HA!) after battling with her need to nurse all the time to keep up with weight-gain in the beginning and now find that nothing else works to keep us both semi-rested and sane. I am terrified to change anything but she is literally outgrowing my lap and waking often there due to distraction or just jolting awake a lot. I feel a little crazy

I would like to ideally have her on a 9am Wake/9pm Bedtime routine to fit around DHs work schedule.