One rule of thumb is do not get your news from social media.

Scan RSS feeds from reputable news sources, and keep in mind how they view the world themselves. Read news inquisitively. Look for data behind conclusions, and if you care about the topic, seek out other information on it before solidifying your opinions.

Always hold your beliefs loosely enough to be willing to be wrong. People often have tribal world views that block opposing ideas from ever being considered. Anything that threatens their tribal identity is considered a threat and immediately discounted as lies.