https://xkcd.com/1768/ https://xkcd.com/1768/ It sounds like you are heading down the path of burnout which often lands in the realm of depression. If you wait

https://xkcd.com/1768/ https://xkcd.com/1768/ It sounds like you are heading down the path of burnout which often lands in the realm of depression. If you wait until your breaking point, it becomes 10x harder to make the change you need, not to mention presenting yourself as marketable. It's much easier to find a new job while currently employed at a top tech company as oppose to having just come off a 6 month recovery hiatus. You say you can't stop thinking about your work. Perhaps constantly keeping your mind busy with work is your subconscious trying to avoiding having to deal with how unhappy you are, and how big of a anxiety causing life change it will be to try and find a new job? If I were you, I would spruce up the resume and start sending it out. Worst case, nothing comes of it and you stay exactly where you are.