So, have you talked to these coaches, and especially your partner about this? Someone mentioned the idea in a previous post that maybe you've got a few too many influences...that can happen, but generally I think the more the merrier. What you may have trouble doing is forming your own ideas about where you want your dancing to go. Remember that dance is largely subjective...ask 10 coaches about the proper body position for a paso step and it's entirely possible that you'll get 10 different answers. At 20 you pretty much need to choose one person that you can trust...and make them your mentor. The highest authority so to speak. However, get everyone's opinion, you are old enough to decide what feels and looks best to you. Also...how do you know that you are not improving at the speed that _they_ would like? Perhaps you need to sit down with your partner and make some concrete goals...it could help you work, but also give you some reassurance about how you are progressing. I do think that these dancers don't sound very supportive...but have you been honest with them about your feelings? Coaches work so much that they can seem a little unfeeling sometimes...but they demand excellence only where they know that it is possible

..if you weren't good then maybe they wouldn't be pushing you?
My way out of a rut...practice, but go out and dance socially...disco, latin, ballroom, with anyone, especially with your partner if she's fun...learn to just mess around again. Just have fun...make stuff up, who cares if you step on one another occasionally...it's about feeling good in your own movements...and about having fun