Well, kind of a bit to unpack there. Here's the advice I wish I had gotten as a kid. "Invest time in learning Unreal Engine"
It takes years, and is harder than most college degrees, but this thing has improved constantly for 20 years. It's free, people will help you learn, and about the time you have a grip on it, it's going to be photorealistic. You'll have a marketable skill, an amazing way to render your creativity without spending a lot of money, and a head start on the future of entertainment.
There are good reasons that people tell you to enjoy being young, and of course I second that. You'll spend the rest of your life trying to feel young again, so why look a gift horse in the mouth. But I also get your point, and honestly, applying yourself to what you're passionate about and getting a head start on the skills that will let you make that a career in that field is far from the worst idea. Don't spend your youth in a cubicle, but also, don't wait till you're old to get started.
If you want to learn filmmaking on a serious level, feel free to contact me once you're 18, and I'll try to help you get started. If you're as driven and serious about it as you say, we can put you through years of training and get you to a point where you can create professional grade work, via an internship.
For now, my advice would be to start getting experience with the most basic skills. You can do this with a phone. Practice framing shots, learn a bit about editing in some free software like resolve, and start thinking about how those shots, and the way you edit them help tell a story. No matter how advanced you get, you will always be using this core XP, it costs virtually nothing, and you can get started right away.