I really need your help with this!

Well I'm on my day 11 without PMO and I feel great about it since I'm a member here with really cooperative friends I met here. The thing is I really need help with a personal issue of myself I always ignore it and I say to myself it will get better but it is not.So I kept lying to myself until I decided to face it and write it down here now.

Anyway the problem started when I started watching porn and loss interest of What I used to do, the problem that I'm taking about is social anxiety, yes I had it eight years and I wasn't confident back then, I always hated myself for that and compare myself poorly to others.I was stuttering when I talk to people and felt bad for myself. My childhood was bad, we always had troubles at home back then,that's why I'm sure how I got most of my social anxiety with the help porn unfortunately.I never had an extraordinary hobby for myself besides video games and movies until now.My will was too weak to do what was good to me and getting forget a lot of things and even words.

What's gone is gone, as for now I feel a bit better but the social anxiety gets better or worse from time to time even if I'm far from porn for weeks, sometimes I feel confident and sometimes I feel very weak and unable to do anything. During my five years in architecture, i never had a good thing that made me a great student or even friends, the instructors were looking down at me because I was bad and yes I was bad but I always manage to success with a (C) for most of the courses. I never enjoined my study and hated architecture because of my poor level, now I'm graduated and I'm not sure how I'm going to be, good or bad? Will I like my job later or not? I feel I'm stuck with something I never liked it in the first thing but it is too late for another alternative major since I don't have the money.

My questions are: Did I make the right choice to write this problems here?
Is there anyone like me felt the same? If yes then how did you deal with it?
Can I overcome all of this if I quit PMO? Will I get better and love architecture more? Is PMO the exact reason for my social anxious and stuttering?
Any help would be appreciated,thank you.