I can’t find simple game ideas

I don’t know because I’m still young, or that most of my games I’ve played in my life are pretty big games even if they were indie, but when I try to find game concepts I can’t make simple concepts.

Most of the game ideas I have are always more or less « complex » in the sense that to make them solo it remains a little complicated even if the ideas of mechanics are simple. The games I imagine are always a little « long » or « big » in terms of size and scope. The problem is that by reducing, the game tends to deform because it was designed to be large enough.

I have trouble imagining just simple 5-10-minute game concepts. I don’t know if this is something serious or if I should work on this problem or just not care, but it’s a little frustrating especially when I just want to do simple things and release them quickly on itchio so that people have fun, give me feedback and I can expand my portfolio.

What do you think?