Kathy Caprino, a contributing writer for Forbes, highlights some of the worst career mistakes one can make in her article The Worst career Blunder You Can Make. She herself went from “unhappy corporate VP, to marriage and family therapist, to fulfilled career coach and executive trainer” so she knows what she’s talking about. Check out the summary of her suggestions.

1. Don’t Ever Feel So Secure That You Get Too Comfortable

Just because you’re doing super in your position doesn’t mean that your job is secure, says Caprino. Many factors determine job security including the state of your industry, relationships with colleagues, etc. Always invest in your skills, not in your job.

2. Grow Your Skills

This is an obvious point. You should always be looking to learn and grow in terms of your personal assets and skils. “The key is to continually expand your professional toolbox, not just stay put,” Wrote Caprino.”The business world is changing at the speed of light, and we need to keep ourselves current, adaptable and open to these changes to be of continuing value.”