I think you’re being a bit hard on yourself. Giving up smoking will have a massive effect on your mood and outlook on life, even if you’re using nicotine patches. It is going to cloud your judgment and your decision making.

Focus on the stuff you can control. Your heating is fixed, and you have a big bill which you’ve said you can pay, so put that out of your mind. Has your debit card issue been reported and resolved - hopefully you won’t lose out over this? It’s a shame about your friend’s cat, but all you can do is support her. However, given what you’re going, through I’d be selfish for a moment and look at it from the perspective that it’s not your cat that has been put to sleep - so don’t take on that grief. As for your boss, this is nothing new - you know you can’t control her behaviour, so just take a step back and breathe.

Also, you’re nearly through the week, so give yourself a pat on the back for making it through. A week without smoking is a huge achievement.

As for the guy, you’ve already worked out chasing him is foolish, so you actually do have a choice in whether you repeat this behaviour or not.

Hope your weekend improves for you.