Hey friend nothing is over to you! Tons of people are making career switch in their 40s and even later, and starting completely over. I won't convince you how young you are, but here is a little thought experiment: the generation of your parents have life expectancy of \~85 years. your gen have over 100 years. It means that you are at the spot of 19 year old in the terms you're comparing yourself to. Everything is open!