Welcome to the forum and best of luck with your loss. Have a browse through some progress threads to see what everyone is doing, but I reckon you have some of the right ideas already - it's all about moderation, it's about small healthy changes that you can sustain. It's not about "all or nothing" diets that don't work!
And you can decide what to do about chocolate. Some people give it up entirely, because they don't trust themselves to stop at a small amount. Other people do really well with small amounts of good quality chocolate (say, 2 little squares of dark chocolate a day) so that they don't feel as if they are missing out.
I tend to ignore it until I want it, then I ask myself if I really want it, and if something else will do. If I must have chocolate, there's the Nestle diet mousses which taste really chocolatey and are low in calories. Or, actual chocolate - you can make a sensible decision! Like a MilkyWay has heaps less calories than most other chocolates - just check the labels! Or have a small freddo frog or something similar. For me, if I deprive myself too long, that's when I'll go nuts and eat a whole block! But if I have a small amount, I'm good
Best of luck! You'll find lots of advice and support here