You should read Viktor Frankl's, "Man's Search for Meaning". Meaning and purpose may be only an illusion, but maybe not. Viktor Frankl was a psychiatrist and Holocaust survivor, and his book explains how men found meaning to live in even the darkest of situations.
Ehh, I found these earplugs. They have a unique look and use from the description; I say you should have these considered in your posession.
Before an eerie speculation about purposes of creation remains: Why not listening at least to Genesis and Exodus of the Old Testament (OT)?Dramatized Audio Bible https://play.google.com/store/apps/details?id=kjvdrama.dramatizedaudio.bibledramatized may help to build up some necessary understanding! Without specific knowledge about The Eternal Laws and a great deal of abstinence from many wrong reports in the NT, facts are hidden!
You will do awesome with Chemistry, I know it!
Also, I don't know whether you gotta read stuff online, in paper, or watch videos, but if you read online, there's a website I use that might help you. https://www.naturalreaders.com/online/
Reads stuff for you, ps not my website, I just use it.
Hope it helps and wish you health happiness and success!
Don't forget to sleep and relax before the exam and stuff. Sleep is when the info compartmentalizes itself in your brain.
YOU CAN DO THIS!! GO FORTH WITH YOUTH AND POWER!!!