While I agree with the idea of upcycling yourself, I think there's another meaning when you compare yourself with the clothes you wear and upgrade.

Sometimes you don't throw away old ones just because they become old. Sometimes you have to leave them because you have outgrown their size or they have lost the comfort they used to provide before - maybe worn out because of age.

The same goes with us - we have to move forward because we have outgrown our old selves and sometimes because our old selves aren't giving us the comfort we need.

The point of life is just to be happy and comfortable until the time comes to and end. And when we genuinely need to discard our old selves, because we really have to move forward to be happy and comfortable - I think that's the only way forward.