Don't give up on yourself or your dreams over a difficult spot. I think every one has areas they struggle with and it differs from person to person. You've made it into the program, and you're here. This means the school saw enough in you to think you can make it. You've already gotten in, don't walk away now. Push and find help wherever you need it. I had a bio teacher that used to tell me it took him years to understand the stuff he is now teaching, and that I should just go see a tutor instead of helping me. It's frustrating and hard. But what I did, was went to several sources to learn the information different ways. I watched youtube teachings, I listened to podcasts, read different books and eventually it all made sense. I'm rambling... but what I mean is, find something that works for you, but don't go backwards. If this is your dream, hold onto it.