www.mumsnet.com/Talk/breast_and_bottle_feeding/1344508-High-need-baby-support-thread
Firstly, can I reassure you that your baby isn't needy because you've Bf her. BFing and high needs seem to be linked in your post so I'm wondering if you think one led to the other (sorry if I've misunderstood) but it's not like that. Some babies really do just need their mothers so desperately and for so long, no matter how they're fed. Only being BF makes it slightly easier to handle as you have a wonderful tool on tap to help - although this is a mixed blessing as only you have that tool and that can be utterly, utterly overwhelming.
Sorry to contradict the other posters but just stopping at 15 months will be very traumatic for your baby, and possibly risky to you (from a masititis perspective).
However, clearly things cannot continue as they are and I'm not suggesting that they should. Just that a more gentle introduction to the changes that you're going to implement would be a kinder way to do things without her being left bereft without something that she currently relies on.
I assume she's pre-verbal? But she may understand quite a lot - if not enough to understand the consequences of weaning. It's still worth talking to her about it all (and continuing to do so, not just once).
Do you absolutely want to completely stop, or are there specific feeds that you'd like to carry on? Or, perhaps it's worth thinking about which feeds help you (say, getting her to sleep) and make those the last to go.
She doesn't need a bottle at 15 months. A cup would be better really as then you don't need to work on weaning her onto a cup later. Will she take any drinks from a cup at all?
Looking at the cot, some children absolutely detest cots. Have you considered forgetting about the cot completely? If there's room then perhaps a mattress on your floor, or a toddler bed next to your bed would be a nice way to introduce her to her own sleeping space. This would take a month or so I would expect to make the transfer, but it will happen. It may be that the cot bars just scare her and being enclosed away from you is too stressful for her. Being in an open bed may feel safer to her, and you can put low bed-guards (maybe the blow up type) on the sides to stop her rolling out.
Some links that might help a little:
www.askdrsears.com/topics/sleep-problems/5-reasons-why-high-need-infants-sleep-differently
www.askdrsears.com/topics/sleep-problems/31-ways-get-your-baby-sleep-and-stay-asleep
www.pantley.com/elizabeth/books/0071381392.php
This one is about separation anxiety: [http://www.pantley.com/elizabeth/books/0071596909.php]] I've not read this book but having just found it for you I'm going to get a copy to check it out. I really like Elizabeth Pantley's other stuff.
This oen from Kellymom is about a mum's mixed feeling about weaning. I know you have said you're totally ready to wean so the reason I'm linking to it is to just help you think through the total picture of separating handling a high needs child from wanting to wean. www.kellymom.com/bf/weaning/momstories/toddlers_do_wean.html
And then if your decision is the right one, then this might help (you've got to love the Cow and Gate adverts that might pop up!!). www.breastfeedingbasics.com/articles/weaning-your-baby Beware - the first big chunk is all about the benefits of term breastfeeding, etc etc, so you'll need to scroll through all that (sorry) but at the end there are some good tips on weaning a toddler. Hope it helps a bit :)
Good luck. There is a way through this but the path might be complex to find. You've come so far and you've had a tough time with a child who needs you so much. She will get less "clingy" but it will take time and the more you can fulfill her needs the faster she will be able to handle the world. But to do that you need to nurture yourself as well, not to mention considering your other children and husband and that's a tall order. Hopefully you'll have got lots of support from your DH but keep talking to him and make sure he understands how you are feeling. Do join us on the high needs baby thread. xxx