1. Get more education. Formal education is the most powerful form of brain training that we have, each additional year spent spent in education adds 2 or 3 points to your IQ. If you can't do that, just further educate yourself.

2. Make your brain healthier. Good sleep routines, good nutrition, exercise avoidance of alcohol/drugs will allow your brain to work more efficiently.

To improve cognitive problem-solving skills, engage in activities like mind games, and strategic thinking exercises.

Practice breaking down complex problems into smaller, manageable parts, and seek out diverse perspectives.

Continuous learning, critical thinking, and maintaining a curious mindset also enhance these skills.