Likewise. I'm also mid-30s with 2 kids, and I'm currently pivoting from a science career to a software developer one. I'm currently deciding whether to go down the self-started startup route or get a normal job, and I'm blogging about my experiences at http://www.hacker-dad.com . Combining parenting and startups presents a set of pretty unique challenges, and I'd love to find other parents who are grappling with them, figure out what it takes to overcome them, and then share the results with the community.