Is it normal to feel this

Hi.( rather long post and i cant use paragraphs so sorry for the text wall) Untill recently my dream job of being a psychoanalyst has been a pipe dream but i've recently found a sense of self belief (in certain areas) and a grounded view of how to achieve this, i've got an interview for a level 3 collage course which upon completion will allow me to go to uni and I am currently doing volenteer youth work so I am on my way to start my career path however I can't help but have this crippling fear and doubt that I can do it, not because I'm uncapable but because of the person I am. The reason i'm on this site in the first place is that I feel i'm not fully normal. I have such a fear of being judged on the person I am that I often push people away before they really get to know me and my faults and therefore have trouble maintaining relationships and friendships. I can't even leave the house in just a shirt due to insecurity. I also spend a rather unhealthy amount of time worrying over situations and conversations as I felt I may have come across as rude or weird. I'm gaining confidence in some areas but some just won't change. I know councelling is all part of of entering this field of work but i'm worried i'll either lie and pretend i'm fine or be honest and get told im not up to deal with the job. Is this kind of level of doubt about such a potentially huge part of my life normal? sorry for the wall again and any adice would be greatly appreciated. cheers :)