The only way you're ever going to get some sleep is to put her in her own bed. Start a new routine and stick to it. For example. Every night before bed, give her a nice warm bath. Massage her with some lotion afterward. Nurse her, but not until she falls asleep. Put her in her bed drowsy, and tell her the same thing every night such as, 'night, night' or it's time for night, night. She will cry at first, probably a lot. But after about a week, she'll get used to the new routine. She may fuss a bit, but she should eventually get with the program and fall asleep quickly---on her own. This will NOT make her clingy, or fussy during the day. In fact, she'll be resting better and will probably be in a great mood.
I'm adding this after reading some of the other repsonses. Don't let the rude lady upset you either. She was of no help at all. You're a first time mom and it's hard to know everything, that's why you're asking for advice. A good mother asks for help. Remember that. Also, don't feel guilty about wanting some rest! You need it to be a good mom. Crying it out doesn't hurt the baby or give them psychological problems later. I have 3 children who have all had a to cry at night a bit to fall asleep. They are fine. Very happy, content, secure, well adjusted, not clingy or fussy children.