We all have memories--good and bad--of teachers who made us read books/assignments, negative reading experiences, negative writing experiences, positive publications, no reviews, some reviews. These memories can serve as stepping stones that better our careers, better us as a person.
One thing I caution over and over, write what you know. You will find it easier to put words on the paper if you know your subject. It's easy to formulate characters, what they look like, different aspects of their person. It's not so easy to sit down and put those thoughts on paper.
If you don't know your subject matter, your writing will show it. You will come off as ill-informed. Your sentences and paragraph transitions will not be good, nor will your character development or storyline.
Please, research what you are writing about...research it until it becomes part of you. Eat, sleep, and drink your research, then do it time and again until you believe what you read and it bleeds into what you write. Your story will thank you for that. You become a credible author, one readers long to read.
Take the time to read and ingest what you write. If it doesn't seem believable to you, how is it going to be that million dollar seller? How is it going to keep the interest of your readers? Readers long to have my creations in their hands, you say. Granted, there are some readers who follow authors so closely, they will read anything and not comment on how poorly it is generated. Don't be one of those authors. Be an author of credible, well-thought out stories with strong characters. Be that million seller.