Making your first game can be difficult. Remember that your goal is to make a game, any game, not necessarily a complex game like the ones professional teams of game developers in a studio can produce. By starting small and focusing on the basic gameplay, a new game designer can learn a lot about their skills and build on that for their next game (or the next version of their first game). That way, you can actually complete a playable game instead of getting stuck on the details as so many first time game makers do.