When I decided to go back to school, I had some credits left to go, on a 2-year degree. I drove through the parking lot 3 times on 3 different days weeks apart before I went inside the building. The first time I walked in the building, I just walked in to see where stuff was and then I left. The next time I actually went to the wall display where the catalogs and apps were.
Then I think I intentionally procrastinated so I had to wait months to enroll. When they showed me my transcript from the 80's, it was written with a typewriter.
I took 3 classes, but dropped one because I was late on the first day and was too embarassed to walk in. I was even too freaked out to return the textbook I bought for the class.
I quit my job.
Then I moved 300 miles to a University, drank damn near everyday. I made friends, but let's face it, I was just the 'old-skool wierd guy, 80's dropout reject.' Which was cool with me, cause that's what I was.
Small victories. After getting that process going, moving to a university seemed more doable. I was freaked out about it, but the freak out was over the hassle of moving etc. It was just the conclusion to the school phase, finally get the degree.
Just get some momentum going. You'll do wonderfully. Socially I sucked and still do, but career-wise, it is the only good decision I've made.