Just got my scores back. Tips on reading & science?

32C: 35 English, 32 math (thought I did better :/), 31 in both reading and science.

I was fine through the end of the math section, but the reading and science gave me anxiety because I always do worse on those sections on practice tests. Any tips on how to get past this mental obstacle and do better in September?

I had the same issue as you. I have test anxiety and Reading and Science were always my lowest sections. Before the test next time, try chatting with a friend beforehand (I did that and it actually helped my nerves a lot), playing a game on your phone, really anything to get your mind off of the test that you are about to take. I also thought it was helpful knowing that there would be other test dates. Even in September, you’ll still be able to take it in October and November.