You've had one heck of a journey with your relocation. Go easy on yourself, take a breath, allow yourself to enjoy your new found location (which sounds amazing!) and then establish a routine. You know what you need to do, you've written it in your post above, I've highlighted it for you.
Snacks aren't all bad, but looking at the calories on them and then logging them will help. Get some kitchen scales out, weigh the snacks out in a small bowl and then put the packet back in the cupboard. Taking the whole bag of nuts (or whatever) is super dangerous and I also would demolish the lot.
What are you tending to drink alcohol wise? Alcohol free beer isn't bad these days and is less than half the calories of that with alcohol in it. It's also quite good at slowing your overall rate of drinking down as I've found that without the "reward" of getting drunk, I'll go much easier on it. It's very refreshing on a sunny terrace. That's also translated to how I drink normal beer which is interesting. Alcohol free wine is terrible and best avoided in my experience!! White wine is quite calorie efficient, but easy to replace a whole meal's worth of calorie allowance with wine without thinking! A glass is fine, just log the calories!