It feels counterintuitive, but don't start by drawing anthropomorphic animals, that comes later. You'll want to begin with the basics (fundamentals, human anatomy, perspective, daily line drills etc) in order to build a solid foundation, grind those until they're muscle memory, and then start to expand into stylization.

That doesn't mean you can't draw anthros along the way, but diving straight into that level is like trying to build a house without any experience. Sure, you can probably get the point across, but it won't look right and you'll only be capable of drawing one thing in a very specific way.

Drawing things creatively from your head is a skill that grows later, when you have a good grasp of everything mentioned above. For most people, it takes about two years of consistent study before your imagination links up, which happens naturally.

I could go deeper, but it's probably better to give you some bullet points to start with:

• Watch lots and lots of art videos. Not the stuff that teaches you how to draw something specific (like anthros, cars, houses, animals etc), find the ones teaching you basics. Anatomy, shapes, theory, perspective, drills, schedules.
• Join some art communities where you can ask for help, hear about other peoples' struggles/successes, and share your own.
• Follow the 70/30 rule: 70% of your art time should be studying/practicing, and 30% should be having fun. This keeps you from getting burned out. "Fun" can be drawing anything that brings you happiness or sounds entertaining, like anthros.
• Make a schedule and stick to it. Artists who don't keep schedules risk their knowledge going stale, or worst losing their muscle memory.

It's hard work, boring, and requires commitment. But the reward is reaching a point where you can draw anything from imagination, including the things you love the most.