It means to recognize and accept that certain things and circumstances are shit and super hard to get through. And there are a lot of things to feel negative about and you have to allow yourself to process that negativity and then choose optimism over negativity.

the art of remembering an arousing occurrence or some porn you watched while masturbating, often handy if you have no porn or your in the shower

Irresponsible or Careless hope about the future.

Optimism is not grounded in a belief that you’ll achieve a desired outcome or follow a desired course. Rather, it rests on a determination to re-evaluate the situation on a moment-to-moment basis, to acknowledge and explore the possibilities inherent in the results you never expected.