keeping a plant healthy is all we can do. there's no magic product or magic process that does anything miraculous.
good strong light providing 35-40 dLI and a happy plant is 95% of it. Filling the space efficiently helps, too.
in fact i'd say keep letting to go naturally. give yourself a better baseline when trying new things in future to compare to, otherwise you are completely blind as to whehther anything done actually helped or hurt you. Strains behave differently. how big your buds are is mostly genetics, as long as we don't step on our own feet.
