Howdy lethalninja,
Introduce yourself to your professors. If it is too much to just drop by their office then email them and make an appointment during their office hours. You might not make a connection, but get used to meeting new people.
Do you have any interests? Get some. Even if you don't, there are 1,300 student organizations at A&M for all kinds of stupid things. Find one or three and join, they arn't hard. Many are service based so if you're volunteering not only are you doing good but you'll be around people and get to know them without pressure. You're never going to have the opportunity to meet as many people or as many different kinds of people as you do now.
As for dating, don't yet. Distract yourself from the thoughts that a girlfriend will make everything better. Then when you are ready, and I can't stress this enough for you, lower your expectations. Or join a religion or a different cult that will pick a wife for you.
Good luck,
The GB