Ok, well, if the paraliminals are not working it might be because you are expecting them to sort of "do it for you". Any time you listen to the paraliminals without some kind of specific goal stated before listening(ex: My goal is to communicate fearlessly and clearly with large groups of people)you basically just relaxing to background noise. Also you have to surrender to the paraliminal experience. You have to relax, fully, breathe deep, and go into the Resource level. Learning to Release with Sedona Method and/or to to completely let go to the Resource level(try 3-2-1 method and bring your awareness to a space above and behind your head, this puts you in the most receptive state to learn audio and visual material rapidly with your WHOLE Body/Mind. I notice that any opposing thoughts or conflicting feelings seem to rapidly fly UP and OVER my head to nothing when I'm doing the tangerine exercise or bring awareness to back of head, try it, surrender to it, you'll see.) Taking slow, even, circular breaths all while listening to the paraliminal will open you up even further.
Also don't stop there you can use things like EFT
www.emofree.com(free manual download) and BSFF(go to
www.amt.com and you can get the manual, or type it in Yahoo for more info.)
EFT can be used to help with specific situations and feelings, like "the fear of what they'll think of me if I say something stupid". EFT after a few rounds can completely knock that fear out.
BSFF is an amazing process that if you go through the whole process it can solve issues completely without you even knowing what the issues are! So don't get caught up in psychoanalyzing why this, and why that, it's ok if you want to clearly address something from the past but don't try to search for every little thing, All you have is the present moment. Stay in it, thats the ultimate goal. Thats when you can truly and effectively be the infinite being you are where your true self can shine. Anything holding you back is not a detail of who you are, it's just a negative learning, but you CAN unlearn it without going back to the past. God bless and I know you'll find your way.