The mind-pattern changes, this is growth of the knowledge we accumulate, and also growth in years. It can sometimes seem the older you get the harder it is to reach particular things especially desires, this is very common.
You do not make the wrong mind pattern, but you can absorb too much negative or opposing thought into your own from society and just people in general.
So society enables you to think more logically rather than abstract, I know you have more of an abstract mind, a creative imagery that enables you to feel in high spirits. Each of us get lost in life every now and again, I always feel this is a sign to regain who you are on an individual level, because we become others just through interaction.
Take back who you are through what you love- art and your creative mind. You will be ok, you are way too switched on to be any other way.