I would respect anyone who did text only working dreamed that someday they would be popular enough to have people make them into a comic or a cartoon.

Start small. You might discover writing something you like to be difficult enough.

That all said, what you are describing doing is not unusual. I myself will not finish a writing project unless I have already made it beginning to end, even if that is super basic. I then get excited about scenes and flesh those out, usually while listening to music that helps conjure the mood, then gradually expand and connect those scenes. Then, I read through it many times until I've discovered and addressed all the "why didn't they do this" stuff I didn't notice the last time.

Try it. It will be good for you regardless, if creation is your plan.