Don't listen to cunts that tell you to "write about what you know". If everyone did that we wouldn't have sci-fi

Set your sights impossibly high for a person of your skill and talent. Ceaselessly pursue those goals as if it were a mission from God Himself(for all you know it could be!) and learn along the way. Dive into areas of your interest and share your creations with the world.

At least, that's what my new job has been teaching me. Not sure if it's the healthiest way to approach life, but I sure do feel fulfilled instead of empty and hopeless. In the face of adversity it has become that thing that is larger than myself which must be fought for. My part in the larger battle. Nothing besides giving yourself a purpose and pursuing that can give your life meaning.

Edit: this may seem grandiose, but it's what men have been doing for hundreds of years. Do you think DaVinchi or Napoleon were commanded by God to do what they did? Of course they were. Even if only to themselves.

If you don't know shit, search up creative writing courses/workshops online, there should be some that are completely free.

Start small, and work your way from there. Walk before you run and all that jazz. Also, finishing a story will give you a sense of satisfaction and accomplishment, that will help you in your next piece of work. Nothing worse that writing for days and feeling like you're never getting anywhere.

Not sure what you actually want to write, but if it's a story, there are some very important aspects that need to be considered such as plot, development, pacing, setting etc.