How to succeed at your New Year’s resolves this year

( CNN) Do you want to eat better, exert more, stop vaping or lose weight?

As we head into a year — and a new decade — your first step is to believe you can do it.
The opposite is also true, said University of Scranton psychology professor John C. Norcross, who has studied resolutions for decades. If you think you can’t do it, you’ll likely prove yourself right.