If u dont want to uninstall all DLC then try this way --> Keep staying awake after 2AM and dont attend the festival ( Just stay in Farm and go through day 15 )
my school has a chrome extension called light speed filter agent and it legit blocks YouTube pfps since the file cdn(I think aka yt3.ggpht.com) is classed as mature
It was easy to bypass some of the restrictions, as one of the admins left a registry key in the administrative shares drive, which allowed me to get around the blocking of some sites.