If you could manifest anything your imagination can dream up without the constraints of known physical matter reality and do so instantly outside of time and space (i.e. for eternity), do you think you’d eventually get bored or even possibly go insane?
If so, maybe that’s why you find yourself here on School Earth in 3rd density, learning with training wheels on about the quality of your consciousness and how to improve it.
If this sounds a bit esoteric, consider the possibility that we may someday simulate consciousnesses such as yours within virtual realities which do not have the limitations of our experience of physical reality. Even if you don’t believe in spiritual stuff like a spirit or soul that exists beyond the death of your body, the probability of a virtual conscious experience similar to what we might call eternity in heaven (or hell) is not zero.
Maybe it’s a good idea to plan accordingly and focus your will, time, and energy on improving the quality of your consciousness. That’s the best gift you can give anyone who encounters you.
Merry Christmas!