I’m 43 with 2 small kids and I am hitting my stride. Yeah it’s hard but it is also awesome. You know more, you care less about your midsection (or lack thereof – cause it doesn’t really matter!!) and more about your intelligence and what you bring every day. You work hard to tame the imposter beast and you go for it. Don’t give up mid-30's. There is a long road and career ahead and if you give in to what you hear then we all lose.