@vonny,
This isn't advice, but what happened with me naturally - I started using less sugar twenty some years ago. It coincided with my first trip to Italy - their cookies et all are markedly less sweet, or sweet tasting, than ours in the U.S., or were last time I was there. But I think that's fanciful, I was probably getting tired of the "too sweet" stuff even before that and hadn't really noticed it. When I got back to Los Angeles, bakery stuff and packaged cookies all seemed gaaah sweet to me.
I like desserts, but don't have them often. When I do bake cookies, I use regular or brown sugar, but something like 60% or 2/3 of what the recipe calls for - not to be be virtuous but to avoid the too sweet taste. So if you want to consume less sugar, maybe gradually tapering the amount of regular sugar down would work, Vonny - don't know.
Twenty, even ten, years ago, I hated whole wheat bread and whole wheat burger buns, refusing to go to an otherwise excellent burger cafe in Hopland, CA because they only used whole wheat buns (what a brat). Turns out that what I didn't like were the commercial whole wheat items and that I actually like "real" multi grain breads, including some grocery store rustic breads, but they tend to be more expensive and most of them probably have as high a glycemic index as white breads. Baking my own bread has had the effect that I eat less ordinary white flour, probably a good thing health wise, but done for the sake of taste and texture. Plus I get to play around with different flours, adding whole grains that have a better glycemic index and taste good to me now.
I've a bias against a bunch of grocery products, the chems involved with the packaging, but don't know, re stevia and truvia. I do know you can find the stevia plant at Home Depot here, so you can grow your own.
On the other hand, I'm a fool for packaged saag paneer (a spinach/cheese concoction, Indian dish.) The packages have way too much salt and I love them anyway.
I drink coffee a lot and tea way less often. I can do fine sans sugar in tea, but like a half teaspoon in a cup of coffee. (Now there the italians are off the charts to me, loading their espressos with sugar but I need some in espresso too).
Saag paneer! Maybe Wassau can bring me some of the real thing for lunch.