Will my lack of diversity harm me?

I have a couple of extracurriculars but they are all interconnected, the focus of all of them is one thing. I didn’t think that forcing myself to do too many was a good idea because I wouldn’t do them with passion and it would be for show. I saw it that way: If I did many extracurriculars I didn’t like doing, it would drain me and it wouldn’t reflect my passions and what I genuinely value as a person. At the moment, I have a big project going on. The reason I started it is the same reason I did all these extracurriculars through highschool (Its something my best friend and I started ourselves with no external aid, whatsoever).
My extracurriculars aren’t many and are concentrated around one thing but, I thoroughly enjoy them all.
Will my lack of diversity and the small number of extracurriculars impede my application? Because if that is the case, I’ll have to diversify in my senior year and I’ll miss the EA.

To the extent that a college is looking for extracurricular diversity among its students, it is more likely that they would rather see a class full of students who each achieve highly in what they do (but not all the same thing), rather than a class full of students who each do many different things at a low level. It is unlikely that starting doing something you do not really like in senior year (with little time to achieve in it, which is even less likely if you do not like it) will be helpful in any case.

How much your type of extracurricular activities helps when applying to a college depends on the college, whether many other applicants also do the same type of thing, and whether they achieve more highly in it than you do.

It sounds to me as if you have been strongly involved in a small number of ECs that you care about. You have stuck with them for an extended period of time. This probably also means that you have done well in them, for a definition of “well” that makes sense for you.

I think that this is exactly the right thing to do. You are already doing what you should be doing (assuming that you are also keeping ahead in your classes and getting good grades).

I recommend that you keep doing what you are doing. Admissions officers look to create a diverse class – but that does not mean that every individual needs to be diverse. Depth is considered more important than breadth. IMO if you start to diversify first semester senior year admissions officer will see through it.

@DadTwoGirls @happy1 @ucbalumnus Thank you all for responding. I really appreciate it.