It sounds to me like you've already identified some things you know you could change.
I'm a big believer in making lots of small, but sustainable changes, rather than huge diet "resets". By that I mean, maybe for the next couple of weeks, you simply make sure you stop at only one glass of wine at night. Then maybe it's cutting the wine down to every other day, or maybe limiting yourself to 1 or 2 bags of chips a week. Try and make just one small change every 2-3 weeks until each small change becomes the new normal for you. Only then, add in another change. I think most people try to drastically change everything all at once and that rarely works.
Again, I think you know what you need to do to get back on track, the trick is taking it step-by-step and turning the "bad" habits into good ones.