Stopping sugar consumption is similar in discipline to stopping smoking. You simply cannot cut back without heightening withdrawal problems. You must either stop or not stop....and the time to do it is when you first think about it as there is, at that point, a psychological imperative to assist you.
Turf out the bikkies, the chocolates, the sugar jar, the sweet sauces, jams, honey etc., check the labels on all your canned food and take those which are too sugar packed to St Vinnies. In less than a month you will understand the benefits and wonder what all the fuss was about.
Good luck
David F