Depending on what it is you are struggling with, I’d say you should talk to your teacher or advisor. Remember that it’s okay to not understand things as fast as others do. If there is a specific question you need help with, I’d be happy to help. :)
Some tips:
1. Read a section as many times as you may need
2. Re-read the answers regarding a question until you know what it’s asking
3. Ask your teacher or advisor what is specifically asked of you
4. Highlight things you’re unsure of or make note of them
5. Remember to take breaks if it feels like you’re not understanding no matter how hard you try. Your brain may just need a little cool off and rest times
6. Try not to be hard on yourself
Have a great day!