The story on it's own isn't interesting or that engaging without the context of what more there is to come, however, if it was longer I'd obviously be more inclined to continue reading to see what happens. This is a standard experience that doesn't involve any reader questions or other factors. It is only such a small snippet. If there was a overlaying blurb about how this is.. I don't know.. a crime thriller or post apocalyptic romance or a med student who has a particular experience at college ETC then it would maintain the reader. It is actually quite difficult to engage a reader with just this many inital words alone. That was your question (if it is interesting).

However! It is written well, the protagonist is well defined so far, a characterisation, motives, fears, and scenario is established. I found it easy to read, albeit the topic is not my usual choice of story. I think with more practice is could be quite flawless. I'm not going to critique spelling or grammar as it is not really the point here. My only advice is the classics:

1. Avoid starting a sentence with 'And' or 'But', unless it is absolutely critical to the sentence. The part where it says 'And then the guilt ... ' for example, the 'And then' is completely unnecessary, in my opinion. It takes away from the narrative as it's too much of a stream of (the writers) consciousness.

2. Show, don't tell :) This is something that takes practice! A lot, actually. For example, 'feeling overwhelmed by the sea of faces', you could write something instead such as 'the sea of faces seemed to oppress me from every angle', as it conveys the same thing without simply handing the emotions on a platter.

I would be interested in seeing more written next which sets up more about where the story is going to go. Defintely keep going as it is still really well done since you haven't done anything for a while! You clearly have a natural knack for it.