In fact, you are particularly good at math, and you should be eager to learn physics. For example, the speed and distance of physics are basically the same as mathematics. As for the mechanics part, you should remember some formulas, as well as speed and acceleration. You should understand Newton's three laws well, and the optical part can be understood according to mathematical geometry. The electrical part also remembers formulas. To understand the concept of physics, we must do more questions.
About chemistry, you should remember the chemical properties, chemical reactions and chemical changes of some elements. The calculation of concentration is your advantage in mathematics.
Believe in yourself, math is good, physical chemistry is good. /kloc-many mathematicians in the 0/89th century were also physicists.