Sorry you had to join the club. Yours is indeed small, but as you can probably guess, they don't seem small to anyone!
I was perhaps in a similar boat to you at my diagnosis. relatively young, healthy, no problematic medical history. Mine was 1.2 cm, so on the large side of "small." I also had tinnitus and no real hearing loss. The hard thing with these tumors (or one the hard things) is that you have so many options for treatment. I ultimately decided to have middle fossa surgery (the best for hearing retention, but only works for small tumors). Doc said there was about a 65% chance of saving my hearing. So, I assumed some risk of going deaf in that ear, but also the benefit of that risk was having the tumor out and the ability to move on with my life, which, so far, is basically what has happened. I go in one year for what, hopefully, will be my last follow-up MRI. (fingers crossed)
But, we're all different. Some on here are really strong advocates for Watch and Wait. My understanding is that it's really hard to predict what these tumors will do, and what impact they'll have. So, it might not grow, but it could grow. Even if it doesn't grow, it could start to impact your hearing. Or it could not. For me, I wanted it out, and so far, I'm really glad I made that decision.
If you wanted my advice, I would look for a surgeon who does a lot of Middle Fossa (not always the easiest to find, as most surgeons are more familiar with the RetroSig approach). See what she or he says, and how you feel about it.
Best of luck, and feel free to DM me if you want to converse about it further.