The right attitude is key if you're young and just starting out.
ReferencesUse references whenever you can. Don't be stubborn. IF you have a good reason for not using reference, then you're the boss. But don't model without references because you want to show the world that you can do without references. In the end, people don't really care whether you use ref or not, they really don't and by pointing it out that you don't will make you look a bit funny and strange too.
Using references is actually a skill because not everyone can just take out a blueprint and bring it to life. The more you use references the better you will be at using references and your art will improve. Use references and use it whenever you can.
Shock them with your result and not with the fact that you didn't use any ref.
CompetitionThe truth is.... we are all god of art. If you have all the time in the universe and all the resources you can have. The conclusion will be that you will become god of art, if your desire is to become one. Plain and simple.
Here's a secret: all things that human do, we do it is because it's easy. Finding the mindset and mentality for it is the hard part but once found, everything just flows. That's why, the mindset/mentality is guarded and rarely talked.
Your age has nothing to do with whether you can do art or not. Don't compare your age to others because it means absolutely nothing. What is important is your
mind. Have the right attitude and perception when you are learning because it will brings you very far and fast even if you started late in your 30's!!.
You are already god of art. What's missing for you is 'right knowledge.'