Hi, I am a recent graduate of LPN school ( February 2020. )
The LPN program in general is crammed with a lot of material in a short period of time and constant studying. If you're having doubts about not doing well before you've already started the program, you have to question yourself and ask "Is this really for me?". The nursing program is difficult in general and needs 100 percent dedication.
If you're looking for tips, one of the biggest tips I can give you is: Self doubt will always deter you. Believe in yourself!
Order books now and practice nursing questions ahead of time:
NCLEX PN Saunders Book is one of the many sources that will help you throughout the entire program.
And yes, it's also good to make friends at the beginning in the program (as long as they aren't a distraction). They are who can help to provide study tips and extra sources to you.