I have been playing Minecraft for months in survival mode and after discovering all terrains and realms I came to a point I have lost all my interest in the game.
If you are focused on building things, you play creative mode then what is the point in survival mode as it is not really difficult to survive to infinity.
Never tried servers tough.
So please feel free to shoot what keeps you in the game? What is the main motivation? Do you have a specific goal, purpose or reason to keep doing things all over again?
I strictly use creative for testing resource-heavy builds. Survival is where all my building happens. Try to make things happen there. It’s much more fun.