Slow developer like myself, "it will take time", equals to still seeing changes even now after well over a decade on hormones (had some breaks in between that time a few times), but oh ever so slight. Yes, it takes time, this usually doesn't mean right away, nor even 1-2 years, could be 5, even 10, maybe you don't even realize how much you may've changed already. If you don't really notice it is because its very subtle, but I assure you, if you're taking hormones and have been on them for over 17 months, the changes are there. Got any before and after pics to compare. Find a before hormones pic of you, then try to duplicate everything, from lighting, your position, posture, facial expression, even try to wear something relatively similar, now take an after pic, compare the two.
And you want to get rid of that belly fat, you're going to have to work that off, cis-women get belly rolls too. My belly though never really fat, I was able to grab a few inches between my fingers a couple months ago (I had a waist still much like a guy), had a little bit of a roll there, worked that off by exercising, mostly stretches, still have a little bit but at least now I have a feminine curve to my waist that I never had before. Hormones aren't going to do all the work, they'll change your mood hopefully for the more positive so you can feel better about you, and they'll soften you up a bit (some more than others, probably depends on your metabolism) adding some nice layers of fat over your muscles, give you breasts (again, some just are lucky here, I'm still tiny pre-teen sized), perhaps add some fat to your hips (definitely did for me, I was flat as a board before every way), maybe stop your head hair from falling out, slow the growth of body hair a little, but aside from all this, what more can you expect without surgical intervention. Yes, it takes time, sometimes unfortunately longer for others than some. Just know that if you are taking them, they gotta be doing you some good.