i have a fear of the lesson tommorow. help choose option 1 or 2?

i just hate this we designing lesson and i am always relying on my friends to help me with the work. i really do not want to go tommorow.
1)should i lie to my mum that i am unwell,
2)should i pretend to go to school than sneak to a public library to do some self revision for other up coming tests?
i am 17. please just choose 1 or 2.

If you're going to have to make up the work or be tested on the information, it's probably a good idea to go in even if you hate the material. After class maybe you can tell the teacher that you're having a lot of trouble with the material and see if he/she can help you understand it better.