Shajikfer
Orange Belt
What have you been training in for two years? Why are you using unverified online training sources on the internet instead of relying on your grandmaster -- the qualifed teacher you are paying to teach you? Have you asked your grandmaster for the correct videos of whatever style he is teaching?
As to relying solely on your grandmaster, the exploration of martial arts and further research into what you are practicing I think MUST be done.
For example; the Chung Do Kwan system I learned was radically changed from how I have observed others practicing the same style. This doesn't mean what I trained in was wrong per se, it just highlights the necessity to double check and make sure you are being taught what you have been told you are practicing, and varify whether or not your teacher has done this.
And that has nothing to do with them being qualified or not.
Additionally, across 7 styles of TKD one can literally end up doing 7 different versions of Koryo. And while I do understand something of the necessity of this through standardization of WTF, I have also watched over the last twenty years Tae Kwon Do become watered down in my opinion; such as the stances moving from being deeper as they are traditionally, to being even more raised than the same stances found in karate.
Additionally, just because the WTF endorses a single style of TKD (in the sense that they expect you to do a series of poomsae and techniques a very specific, certain way) does not mean that the other styles of doing TKD aren't equally valid. I started with WTF and gradually moved to systems that would fall under the ITF, and I have heard people in the WTF system at certain times refer to ITF as being 'unauthentic'.
I've seen arms crossed to initiate blocks, fist from hip, hand from shoulder, arms parralel before blocking and so on. None of these are wrong in terms of being 'authentic' from each other, save that only one method is what the WTF recognizes.
And considering for the survival of the art in the 1950s masters were sent across the world to ensure its continuance, I see no practical issue with the fact there are various styles of TKD that originated because of that.
I was very fortunate to train under grandmaster Jhoon Rhee for a time, as well as descendants of his students, but by no means would I ever say that his methods are the only right ones. That would be a disservice to venerable masters such as Won Kuk Lee, Hwang Kee and so on.