You can't. At least I can't, and I am a habitual sweets enjoyer, so experience doesn't help either.
I either eat the whole thing, or I practise complete abstinence and don't buy sweets at all. Sometimes I have to fast for several days to make up for a bad stretch. It would be better for me to just drop sweets altogether, permanently. Easier said than done, though. Yes, I have a probem.







