Founders need to keep practicing compartmentatlizing their brain.
At startups, bad sh*t happens all the time. Don’t let one bad thing affect the rest of your day. Lock up the bad thing in one zone, like locking up a beast in a cage, and move on.
Of course this is easier said than done, but founder mental health is a serious thing and compartmentalization definitely helps keeping sanity.
Think of your brain as a hard drive. Don’t ruminate on what someone said too much. Don’t die by a thousand cuts.