Spoiler alert: it's impossible. If your goal is to eliminate anxiety or "block out" the bad thoughts, whether they are distracting or negative in nature, you're playing a losing game. This can be hard to accept for many athletes...
Boston Celtics head coach Joe Mazzulla presents a perfect example of how to deal with criticism that stems from a classic tool in working on your mental game, reframing, when discussing the unfair criticism that Jayson Tatum receives.