Choose optimism
The life of an optimist is hard but exciting. Pessimism is easy because it costs nothing. Optimism is hard because it must be constantly reaffirmed.
Dreams are delicate and easy to destroy. When an idea presents itself, try to imagine the best version of it — what would make this idea great?
Pessimism and optimism share a trait: both are self-fulfilling. Your intention influences the outcome. Call it karma or, simply, effort.