Why not read Deutsche Bank's Campaigning toolkit for teachers - it has plans for three lessons which aim to help young people to think about what campaigning is and if (and how) they might want to campaign in their local area. If you think its useful, you could pass it on to your own teachers, or even try running it yourself with younger years in your school or at a youth club.
Use this webpage from Unicef to think about how you might research things in your local area... If at the end of the day you've found out anything exciting, you might want to devote another couple of days to doing something about it!
Or try Unicefs ideas on public speaking to build up some confidence - to help you to teach other young people, and so that you can tell other people about what you're doing.
...AA