You have time. You're 35. Realistically that means you've probably worked about 10 years and still have about 30 to go. Relax. You've got some money saved; I was in a similar situation a few years ago and took a sabbatical year. Maybe that works for you. Just do nothing for a bit but enjoy the outside world, disconnect, read philosophy. That really gave me a lot of peace and led to a career change and a lot of understanding about what I find important in life.