hmm, that's strange, when you clicked send if it was timed out it should of asked you to sign back in and once done the message should have sent. I'm not sure why it didn't. A couple of suggestions for next time: 1) when logging in, tick the box that says 'keep me signed in' 2) you can highlight and copy your message before clicking send if you're afraid of losing it. That way if what happened to you happens then you can just re paste your message. It will save you so much time.
How about starting by going for a walk around the block. Then as you get more comfortable and confident, expand the distance. If it's rainy or sunny you can bring an umbrella. If it's hot out, wear appropriate attire. If it's cool, do the same, wear appropriate attire. Baby steps Leaf. Set small goals for yourself, then you're more likely to accomplish them and continue. You can write your goals and progress on a calendar to keep track of everything. What about going for walks with your sister?
As for your Anthropophobia, you're working on that. Both with your therapist and by being on here. Again, like your walks, you can start off small with a simple "hello" and smile when you're out and about. The more comfortable you get the more you can say. Go at your own pace.
You have some good taste in movies! Just from your list, I like Alien, Aliens, Predator(1987), Terminator 1, 2 and I enjoyed Salvation, and The original Star Wars trilogy. I also like Passion of the Christ, Jurassic Park, the Christopher Nolan Batman trilogy, Seven, End of Watch, Fight Club, Tears of the Sun, Defiance, Enemy at the Gates, Lone Survivor, the Planet of the Apes prequals (Rise, Dawn, War), the Matrix, The Last of the Mohicans, James Bond movies, The Good The Bad and The Ugly and Starship Troopers just to name a few.