The only system that doesn't create any new problems is one that's static. Humans aren't static (we're born, we live, we die) and we live in a non-static environment. Unless you manage to completely isolate us from our environment & take away all our free will, you'll never build a system that doesn't create any new problems.

So all those problems are fixed but somehow new ones keep popping up?

Yes. Welcome to reality.

Maybe it wasnt real change but actually just band aids and the root cause stayed unadressed through all those years.

The entire history of human civilization is an example of building the airplane while you're flying it, without a plan for either the airplane construction or the flight path.

Somehow the system you want to maintain and support keeps creating these problems.

There are a lot of problems, and yes the solutions to old problems often create new problems, because reality is not a video game where collecting a dozen McGuffins ends the quest and you get a reward and then never worry about that issue again.

Sometimes the airplane crashes: https://fallofcivilizationspodcast.com/

The options are:

1. Pick up the pieces and try again.
2. Give up and die where you are.

u should learn about maths.

you can start with 4 problems, then solve them and create 2 new ones instead, then solve them as well and create 1 new problem instead.

even while you are creating new problems, you can still be doing more good than harm. learn some maths.