Constraint – sugar

Hi!! quick question. what if I just “constrain” sugar consumption. Giving up sugar is HUGE for me. It would be like the heroin addict giving up heroin. anyway. is constrain of sugar enough … ? here is my model:
C – sugar consumption
T – if I give this up, so many other “wins” will naturally follow
F – yes, I can do this one thing, excited, less overwhelm
A – download and model on sugar only
R – zero sugar, other things follow