If you think you can afford to make a change and you have a clear goal, then you should take advantage of it before your life changes and you can't any longer. I had a major career change in my early to mid 30s (I'm 40 now) and it was one of the best decisions I've ever made. I've heard a saying which I heard is an old Chinese proverb; no clue if its background is true or not, but it goes like: The best time to plant a tree is 20 years ago. The second best time to plant a tree is right now.