Hugs, it sounds like you are both going through a rough time.
With regards to getting EASY started, the key word is consistency. Start as you mean to carry on. You cannot say you will do one thing and then in an hour cave in, as your lo that they will get what they want to fall asleep.
To get yourself started on EASY, I would pick a time that you are going to start your day i.e. 7:00am / 8:00am, and this is going to be the same time that you start your day every day. Again the key word is consistency.
On a 4 hour routine you will be looking to milk feed every 4 hours, and offering your solids at around 1 hour after your milk feed. i.e 7:00 feed, Sleep, and 11:00 feed again and so your routine goes on. The 4 hour routine set out in the book is set out for a 4 month old, so the A and S times would differ slightly, and you will probably only have 2 naps in the day.
To help get established on your routine, if your lo is still asleep at an E time, I would suggest waking your lo up and offering the feed at the time it is due. This is so that you can get your routine established.
With regards to getting your lo to sleep. All naps and night time sleep should be in her cot. At this stage she is not going to be used to what is going on, and not understand why you are making her sleep in the cot instead of co sleeping. When she cries, you pick her up, console her and then put her back in their cot. This is called PU/PD, and you could be there for a long time, and might have to pick her up well over 100 times. Remember she is not understanding why you are not feeding her to sleep. She is going to cry, but it is probably going to be harder on you than it is on her.
It might also be worth popping over to our Nap boards and see if there is any advice on there as well.
The first few days are going to be hard, but just remember, that the hard work is going to be worth it in the end.
When your lo wakes early from a nap, it is suggested that you do PU/PD again to try and get them to extend their nap.
Haydens Mummy, at 9 months your lo should not need the catnap, and I would also not suggest doing the DF as this milk would cut into his daytime intake. I would also aim for him to have 3 bottles during the day, Morning, Afternoon and before bed. This should be his intake for the day.
Hope this info helps, please let us know if you have any other queries.
Good luck with getting started