Hrm I used to try to cut out sweets entirely, and it definitely expedited weight loss, but the problem was that I'd feel so deprived that I'd eventually break and binge eat sweets and then ... there went my progress. >_<
So what I've been doing now is still having sweets, but not a ton - maybe a cookie every night, or something simple like that. I still have ice cream and bubble tea and lots of other stuff maybe once a week each, but it's just enough to keep me happy and not feeling deprived, so that I don't bounce back, but it's not too much that it's preventing me from losing weight.
This is coupled with lots of exercise of course - an hour every other day, which I fully enjoy and isn't too much that I get sick of it. I guess with all things, balance works best.