I’m a big advocate of “writing it down” or “talking it out”. Writing helps me not only get pestering thoughts out of my head, but it also allows me to brainstorm solutions and reflect on its execution. Writing about emotions helps me ease stress and organize my thoughts. And when that doesn’t help, I talk to my support system, which for me is my twin brother, but for others, it could be their best friend or significant other.
Sometimes, I vent (carefully). It helps me get things off my chest.