Learn the math skills required to do physics problems. Math is often said to be "the language of physics." Becoming an expert in the fundamentals of math is a great way to improve your ability to master physics problems. Some complex physics equations even require specialized mathematical skills (like taking derivatives and integrals) to be solved. Below are just a few math topics that can help you perform physics problems, in order of complexity:
Pre-algebra and algebra (for basic equations and "find the unknown" problems)
Trigonometry (for force diagrams, rotation problems, and angled systems)
Geometry (for problems dealing with area, volume, etc.)
Precalculus and calculus (for taking derivatives and integrals of physics equations — usually advanced topics)