Hey Lazarenka!
I agree with Phoenix Hunter- building strength for pole dancing, as well as becoming flexible, takes time. Lots of time!
But, I also want to ask... are you focused on the goal, or the journey?
One thing I've noticed with a lot of your posts is that you're jumping in, all in, and while that is wonderful and I'm super glad you're excited to really put your whole self into something you obviously love, it also seems like you aren't really enjoying the time it takes, you're not seeing this as a journey, but as a set of goals to be achieved. Once you have X number or certain moves under your belt, does that make you a great pole dancer? Once you can do the splits, does that make you sexy?
It's similar to me with running. I look at my split times (how fast I've run for each kilometre), I look at my total time, and I think "I could have pushed harder." I compare myself to my two runner friends (one of whom is my cousin) who have been running for AGES, and neither of them have any kind of knee issues... and I feel inadequate. I try to push harder, more, do more things, see what I'm missing and why I can't get that 6 minute kilometre?!
But, the truth is, that this is a JOURNEY, and I need to relax and stop all this nonsense. Those two have been running for years longer than I have, and I DO have knee problems. That's one of the big reasons why I run, in fact! If I settled in an enjoyed it, maybe I wouldn't be where I am right now: Haven't run more than twice in two weeks, my knees are getting worse (again), and I've plateaued at the place I am now. I feel awful, and I'm frustrated... but, I wouldn't be so frustrated if I wasn't focused only on the goals, only on the belief that I "should" be better.
You've "never met a physical challenge you couldn't master," which is very interesting to me! I've met thousands of physical challenges I couldn't even start! Yet, you're frustrated, you're getting upset. You're pushing so hard on this... are you enjoying it?
Maybe checking in with yourself and your expectations would be really good. I mean, pole dancing is extremely physical, seriously needing in strength, and flexibility training takes huge amounts of time. The splits do not come easily for most of us- even after years of stretching.
So, what are your goals? Where are your expectations? Are they reasonable? Like, honestly reasonable, considering the fact that building muscle takes time and effort, consistency, and that the same thing goes for flexibility? And, I'm talking all of that over YEARS, not months. Years.
Good time to check in with yourself. This may be one challenge that you may just have to buckle down and enjoy the road, instead of that sweet rush of nailing a move.