Creating something of your own is an amazing process filled with emotions of different shades. It seems to me that it is creation (I don't want to equate it with creativity) that gives a person a special power. It is not only a process of self-realization, it is a lot of soul and some inner calmness. It is an immersion into Nirvana, into one's own world, where "you see it this way" works.
Is it possible to create outside the frameworks, guidelines and norms? I think so... Because only in this case the creator is able to create a masterpiece. And if you have never tried it, if you don't have something you love to create, then by all means start! With what? And here you are lucky, because you have no experience: both good and bad. The lack of failure unleashes you with nothing but trump cards in your hands.

A lot of people start with paintings. And indeed, it is probably the most accessible way to express oneself. Hundreds of thousands of years ago, someone dared and today the emotions of many iconic artists are priceless. We are unlikely to know the thoughts in their words when they created their masterpieces, but what they created often amazes our minds.
It's never too late to start. Not for ceilings or prospects of benefits... For an outlet that will relieve you of the moral burden and endless information flow. Your world will be all about you and the tools to help you. Just get started!