I promise you I'm 47 and I'm telling you 40 is young! I wish I could tell myself that then...these next 10 years Jenn are going to change you beyond your wildest dreams, and to be honest - I think going to school after 30 or 40 is ACTUALLY the best time for that type of learning: academic.
We are SO much more mature, we are certain of why we do what we do - or at least closer to it - and it makes for much more efficient learning. You will get double the work done in half the time that someone at 18 would - just from the dynamics of an established developed mindset and emotional maturity.
You keep doing this - and I am excited for what you learn and what you decide to do with it!
Thanks for sharing - I love reading your stories!