Life does that. It changes relentlessly. Stability seems like more and more of an illusion with age. It seems to happen to most people. Something that felt like an easy decision years ago now seems less easy given new circumstances. It happens. Decide what truly makes you happy. You may need to adjust this feeling to new situations. What are your true boundaries? Reality doesn't always align with our ideals of happiness. Years ago I went fervently vegetarian and then vegan. It worked great for a while, but life changed. The decision did permanently alter how I live, but I decided that I do have some tolerance for not following these strictures absolutely and always. I allowed for a few - a very few - exceptions and it allowed me to relax. I decided to ignore everyone who considered me evil or an apostate for a minor adjustment. I'm probably 98% vegan now (though I know many see veganism as all-or-nothing, I don't find this realistic, productive, or helpful for many people). I'm comfortable and happy within these boundaries. You need to determine within which boundaries you can still remain happy.