Personally, I think it is a great idea.
Trying to control yourself with a smaller piece AND writing what you know should be immensely helpful in getting you acquainted with all the things that go into making a storygame. As mentioned, if it is well written, it won't be mundane. I'll quickly mention that proofreading/redrafting can do wonders in fixing a story that is mundane, among just improving it in general, so if you want to write it, I do not see the idea as a reason not to.
While my experience isn't great, I think that people generally underestimate how interesting their own lives/experiences are, but my sample size for this is pretty small. At any rate, worst possible case scenario: you'll learn more about the editor, handling branching, and actually writing.
TL;DR
It can definitely be a workable story, but that goes for almost any idea, as such, what I like is that there is a clear familiarity (due to basing it on personal experience, 'write what you know' and all that) and it having a clear scope. Any boring parts that comes about can be refined out anyway, so I'd say go for it.
P.S. You already give good examples of what could happen, showing that there can obviously be engaging events/happenings. Readers will likely be able to relate to the general idea easier as well, which can also help with engagement. Anyway, hopefully you get something useful out of this, tell me if anything needs rephrasing or if you've got further questions.
P.P.S. Hmm, thinking about it a bit, I'll say that you might like to consider some unifying theme(/s), as that might be a nice way to help keep the story more concrete if you are worried about it being boring, as it'll help guide the writing process (easier to spot what doesn't belong, thus getting rid of any parts that might be more dull [or helping refine them to fit in better with the rest of the story]). I'm only putting this here as a post script because themes are something I struggle with to some extent, and they are something that I haven't given much (if any) thought in the past, so I guess I assumed others done the same. However, because of this, I do now like to bring them to people's attention, in case they are like me.