Fellow engineers

For me series was the hardest part
Are you in college or hs?
Attend every single lecture, absolutely go to study sessions or office hours when you are confused
Try to work with your classmates on homework, their understanding will make you understand better
When prepping for exams, take the practice exam, then once you got the answers, go back and explain why the wrong answers are wrong for each question (this is a really good one)

But overall having a good understanding of calc 1 helps a lot

A good way to check your understanding is to try and explain or teach the concept to someone. It will quickly show all of the holes in your understanding.

it works decently well in college for bullshit classes, but for major classes it's really just a last resort.

crazy that you can ace diff eq and you're just out here posting on vlr. That shit actually fucked me in undergrad. I'm doing my masters rn and still nothing has been as bad as that