In art and design, preferably game art production and comic book drawing, as a beginner at this craft, which one should I get accustomed first, the former or the latter

While I admire your enthusiasm, it'll be better for you to just post your questions under a single thread. It'll be a lot easier to follow

As for your question, it doesn't matter which medium you start with. Go with the one you're most familiar and focus on your art fundamentals first (colors, composition, etc.). Most of the art skills you learn will be transferable between different mediums

Thank you.

I'll try to make sure I have compiled a list next time

By digital you mean drawing using tablet? You can give it a try. Find cheap drawing tablet or second hand Wacom pad to practice first. I've known some people in my gaming group starting their drawing hobby this way creating various characters based on popular anime and manga.

If you want to go manually,there are many affordable drawing pad and alcohol markers available online for newbies. Practice in small steps and work your way from there.