Hello Friends, Since I am new at this forum, I will try to be brief and direct.
I believe you, as most of us that seeks the Yogic world, are looking for mental and Spiritual "release" from Samsara (mundane fears, attainments). Therefore you go to an intensive course that tells you can achine it, if you simply practice the exercises everyday.
As an aspirant, who has fought several depressions crisis and stumbled thru several yogic and non yogic techniques to get the "hang" of life, I can suggest you to quit all those fancy breathing techniques and stay with the basic Hatha-Yoga. Not that Pranayama can make wonders thru people and really help them thru their energetic alignment. But this should be you next step. Your body must be first "clean" and physically fit.
There is no ultimate yogic technique, there is what works and what does not fits to your western constitution (mental and physical). Continue with you regular Gym classes and look forward for a restorative or Basic Hatha-yoga (maybe Iyengar style), in which you spend a good time in each posture breathing deeply. That helps a lot people with energetic issues,
Open your mind to understand why are you getting so uncontrolled, maybe the practice is opening you to face that side you must take care, but take it easy, Talk to people about your anxieties and look for spiritual practices (whatever religion fits to you best). Be an spiritual seeker rather than an object or technique seeker.
Sure you will find what you are looking for. Just keep looking inside....
