Trying to become invisible, largely.
Needed to avoid the girl in the year above who hated me (never did work out why) and would beat me up at every opportunity.
Needed to avoid the girls in my year, as they hated me for being poor, not having the latest fashion shoes/bag/coat/not being feminine enough/whatever and for being good at schoolwork.
Needed to avoid groups of older boys, as their favourite pastimes were grabbing and groping girls or trying to force their way into the girls' changing rooms where they knew we were made to have showers.
Needed to be ignored at home as getting hit regularly was really pissing me off - although life improved immeasurably the following year when her back fell to bits and she spent the next 3 years in bed off her tits on painkillers. Sadly, the NHS worked wonders and she was back to full punching strength just in time for me to disappear off into the distance aged 16 with the first boy who quite liked me.
Then there were blistered hands from carrying all the textbooks without gloves, chilblains, blistered feet from crappy shoes, cold from not having a warm coat, the most evil period pain in the world compounded by the 'let's steal her bag and see if she's got her period/if she's got Tampax in there, that means she's not a virgin' bollocks.
It's hard to feel positively about 80s music when it was the soundtrack to things generally being pretty shit.
1989-90 was when things started to improve.