Are you
HOMEWORK?
Even the most ardent can break over my weight,
Lots of homework can be difficult for even hard workers to do well at.
Not that you've noticed since it's me that you hate.
You probably hate homework.
Don't get behind now, lest you're swept away.
If you get behind, it's difficult to catch up with your homework
Look towards your friends, they may convey.
Your friends can help you with various study groups
Eaten little by little am I, line by line,
Every day is one day closer to the end of the homework, you have to do it line by line
So that you may not trip up and find the right sign.
You have to ensure that it's done correctly
Suffer me a little while, so you can be brought to a full understanding of things.
After lots of homework, you'll have a better understanding of the things you study. You'll also have much improved time management.
The title:
Most people don't enjoy homework, although some do.
Secret hints:
The acrostic is ENDLESS, which can be how a lot of courses and homework feels (especially by the 3 month period, speaking from experience!!)