Even if you could customize everything, you wouldn’t be satisfied, because you still wouldn’t have everything you want. In everything, there are trade-offs.
We’re forced to make choices. Sometimes between two or more things we like equally. The act of choosing one over the other makes us wonder if we made the right choice and wish we could have it both ways.
Options are important, but no amount of freedom can produce perfect satisfaction. Acceptance is an important part of life.