Some Help Please :)

For the past few years now, ive completely gone retarded around females that im attracted to.. I know why and thats cause my ex g/f broke up with me and for some reason that whole relationship with her lowered my self confidence. Recently two girls came into my life, they both seem interested, but I for one am not one to 'girl hop' so i've been hanging out with girl "b".. Its only really been a few days she says stuff like cutie, sexy, hottie etc.. I say things like gorgeous, beautiful, pretty etc.. When I talk to her on the phone or see her in person im completely dumb on what to say and the conversations usually dont get too far, if we are at a party and were drunk my mind is completley altered and I can continue a conversation and she seems more interested, but when were just on the phone or in person and not drunk she seems interested at first, then I just cant hold the conversation at all and she seems totally unintrested.. And im not about to go get drunk every time I see her cause thats just stupid.. Haha.. Is it normal for a guy who has been out of the "dating scene" for a few years to be completley uncomftorble around certain girls? Is there any tips you can give me so I dont make any mistakes with this girl, I really feel attracted to this girl physically and attracted to her personality greatly. There isnt too many girls im really interested in, but this, this is just different.. I know its way to early to know much but I can "feel" that this girl is a girl that would be a girl who could just make me smile when I hear her voice.

Please id really like to make it work somehow, but at the rate im going she wont be talking to me after a few more days because I act a fool and choke up alot... And for people who know me, its really not me.. So any anyyyy advice I would be very grateful for... Thank you =)