This is NOT your "fault" it's totally normal. ANd if you feel like your baby crying is not good for her, then trust your gut. Some people feel it is and some people feel it isn't. I personally don't let my babies "cry it out" as I feel it is traumatic.
Perhaps try some "baby steps" to get her out of the bed. Maybe first start by putting her crib mattress on the floor of your room. That might allow her to sleep (knowing you're in there) but not WITH you. YOu will have to reassure her at first (and that will take away your sleep, too!). Then perhaps move the mattress in her room, lying down with her for a few days. Then after that has worked,maybe you can put the mattress back in the crib. You could also try putting her crib in your room near your bed. SLowly move it out (by that I mean have it near your bed, then move it a little bit away, then a little bit more...). You could also let her fall asleep in your bed and then try to move her.
I will tell you, though, that you are still going to be losing sleep for a while this way. If she's waking at night, THAT is going to be what keeps waking you, even if she's not in the room with you. For us, co sleeping didn't occur until my kids were over a year! And it allowed us all to sleep more when they started sleeping with us.
I also think the falling asleep to a bottle thing might have to change for her but don't change both things at once! Start with the crib, and worry about the bottle later. Research suggests it is not good for their teeth, and when they suck for comfort they are still drinking more than they would otherwise (overeating). Unlike breastfeeding, which the baby can control if he/she is eating or not, the bottle will still provide sustenance when baby doesn't necessarily need it. Of course, if you feel she does still need the nutrition, keep doing it. All babies are different and yours may truly need the bottle more. MIne never took a bottle, so I have no suggestions on weaning from it!
Many people swear by the CIO (cry it out) method, and that it works. But even Dr. Ferber (who first wrote about this method) says it is not a method for all people. If you truly feel that cying is traumatic for her, don't do it, despite the appeal of it working quickly. Anytime anything happens in your life, you'll be back to square one with the crying for several days, and I don't think you'll want to put your baby girl through that. Now if YOU feel that it's fine, do that. But from your post it sounds as though you are not.
I would instead suggest the book The No-Cry Sleep Solution by Elizabeth Pantley. It takes patience and analysis, but if you use those things, you will be rewarded in the end. She suggests a 10 day (I think it's 10) sleep log where you write down what is going on all night. THen you have to analyze it to see what you need to do. She offers many suggestions on how to LOVINGLY help your child a) stop falling asleep with a bottle b) move into her crib and c)sleep through the night. It is a gentler, loving way to help baby with those things.
Good luck! It's hard, and no method is right for everyone. People will suggest CIO, Dr. Ferber, and Ezzo's Babywise, but it truly sounds like those aren't going to be the methods for you if you already feel the crying is detrimental. You have to do what you think is right. I know the sleeplessness is difficult but you'll be rewarded after you have a baby that is confident, secure, and comfortable sleeping on her own, rather than having to cry herself to that position.