GrreatTeacher - Hi.
How bloody odd. I find one-on-many eye contact easy because I can just scan from person to person - just as long as I don't need to dwell on someone too long. One-on-one eye contact is impossible for me - unless I want to stare someone out - then it's simple because no one beats me at that stupid game.
I used to try and remember to smile. In the end, I just gave up.
I must admit, I don't like people but I do like chatting on line.
I used to have a problem getting jobs until I figured out how to get the job I wanted.
Firstly, I'd look for a job that no one else wanted - eg. a project that was in the mire.
Secondly, I'd come across as arrogant sod and gave them the impression that I could do the job stood on my head and that they needed me more than I needed them.
Thirdly, I never smiled or made eye contact because I didn't want them thinking that I wanted their job and that I was too good for it. Having Aspergers is a definite advantage here because you can relax and be yourself. AND, here's the kicker, they believe because you come across as one who genuinely doesn't give a flying fart whether they hire you or not.
I got most of the jobs I applied for.
I have no idea whether such jobs exist in teaching. If they do, it's probably where you belong and where you'd be happiest. You can only give my method a go and, let's face it, your method hasn't worked yet (no disrespect intended).
OK, my method may not appeal and I'm not suggesting that you try it. But, it may lead to an idea that may pay off.
Luck.