I was accepted into my dream program a few weeks ago right out of undergrad, and have already committed to attending. I'm twenty years old, and finished undergrad in three years. I knew I would be on the young side for grad school but when I visited the program this past week I realized I'm significantly younger than anyone else in the program. The degree is one that people often go back for after working for a while, but I've known for a while that this is the career I want, and so I applied much earlier.
My academic adviser told me my application must have been quite impressive, because the program doesn't usually admit students that are still doing their undergraduate degrees. It was a nice compliment. : ) But now I'm worried I won't be taken seriously by the faculty or my cohort. I also don't feel like I have much to talk about with the current students and am worried we won't get along because we are at different life stages--many of them are married and/or have kids. Whenever I try to share information about myself I feel as if I am reminding the person I'm talking to how young I am. Furthermore, I'm incredibly socially awkward when I'm caught off guard (like, I can give a smiling, confident speech when I know I'll have to, but try to start a conversation with me in a coffee shop and I'm non-functioning). I'm afraid these combined will give me a reputation as some kind of aloof wunderkind, or worse, someone who got into grad school not knowing what it entailed and is in over her head from the beginning. To top it all off, I'm a first-generation college student, and occasionally I feel a little lost among the academics as it is!
I know I'm smart enough and capable of handling the workload, but I'm afraid that lack of confidence from faculty or my peers will throw me off. I've always readily gained the support of professors in my undergraduate institution, and have succeeded partially thanks to their votes of confidence through letters and the grapevine.
Can someone give me advice? I don't even know what I'm asking, but some reassurance at the very least would be appreciated.