Tbh attempting to replace sugar with “sugar alternatives” is part of the problem. The other part of the problem is that commercial goods are sold with a fuckton of super sugar (high fructose corn syrup et al.) added to them which is completely unnecessary. If you just try to get your sugar from natural sources and try to eat some fiber with it (whole fruit is perfect for this) you’ll be fine.

The short version is simply: don’t drink your sweets