Understand that learning the mechanics of a trick is not the same thing as being able to do magic.
Most people in the world logically understand how, for an example, the Sawing a Lady in Half Illusion works yet, in the hands of certain performers the piece still gets the audience to gasp when you do that separation of the two sections... not all performers get that result however. The reason for this is simple, they haven't learned how to make the effect "enchanting" and more importantly, they themselves have not connected with the public.
There's an old saying in magic regarding those that hide behind their props and there is a huge amount of truth to it... exceptionally few within variety entertainment have the cooth that allows them to achieve such connections.
Now, you admit to having a low sense of confidence on your part... the only way to overcome that problem is to take a deep breath and JUST DO IT!
The only way you ever learn to swim is to jump into the deep end of the pool... that is how any SKILL happens. Know now that you will suck... we all suck initially but with time, practice and experience we start learning how to no suck and more importantly, how to over come those issues that make us either believe we suck (which is typical in the mind of an artists) or, if we really are bad, how to overcome what it is the public dislikes about us and what we do.
You have to be aware... you must LISTEN... listen to THEM... the people you are performing for.
In magic as well as puppetry and even comedy, the performer does material that entertains themselves rather than thinking about the audience. Until you learn to change that point of priority you will not be able to graduate... but regardless of what area of entertainment you are in, you MUST learn to listen and follow the direction of your audience as well as your director... those coaches and guides that are able to help guide and mold you.
I've been on stage since I was nine and I still listen to others... I beg other people to tell me what I need to do to improve on a routine or presentation. With nearly forty years in this business I still doubt myself believe it or not... and I still reach out, finding those that can help me round out what I'm doing so that it becomes a magical encounter instead of a bunch of tricks.
Now, I'm betting you're rather young and you get bored quickly and easily. I'm saying this based on your response to the question you were asked earlier... both, what you said and your typing style... they both say a lot about you. My hope being that you will correct yourself the next time you get bored and decide to move on to something else before you've given the other thing a chance... in this case, Ventriloquism.
None of this stuff happens over night and just knowing the rudiments behind any of it, does not mean that you "know" it. So make friends with your puppet and that guy you see in the mirror when you practice... let them both know that you are their partner and you are going to stick it out with them until they get it right and start winning the talent shows... especially the big ones, like America or England Has Talent... the most recent winner in the U.S. being a Ventriloquist by the name of Terry Fader...
Don't give yourself permission to quit just because you're bored or it feel funny or you think you suck or some jerk told you that you sucked or gave you a ration of c*** (not the best) for playing with dolls. Just remind yourself that if it weren't for all the magicians and puppeteers in the world there would be no Star Wars...
