It's simple really - just - USE IT! You joined the site so take advantage of the information, teams, advice. Log in, read the blogs, interact with other members, make friends. Most of all, though, USE THE ADVICE! Don't just read it - or put your settings to 'no mail' - the more reminders you get to stay on track the more likely you are to do so.
Allow Spark and Sparkeroonies to encourage and motivate you. It will mean changes - but be honest with yourself, YOU KNOW THAT ALREADY AND IT'S WHY YOU ARE HERE