>>7765764
Just make your game. Create or find your own assets. They can be placeholders while you develop. If you don't like the look of them, you can swap them out later in the process, or show off your mostly-complete game and ask someone else to help you with the art.

Likely, you'll need to understand something about animation. For now, just find a character that walks the way to want, and build your own over the frames or parts.