Help me on this Facebook issue?!?

[Jack]

Hi guys my name is Jack and I'm 14 before this mess I used to have a normal life with having my school mates as my friends after that I got involved in creating a page and I ended up adding those people who supported arsenal so we could do a share 4 share because my page was a arsenal page too soo then I started this in 2013 and stopped recently so then I blocked all these unkown friends and went on the activity log and delted everything I've done withem apart for one thing because I left all the groups I was in I couldn't find the things I wrote is there a way to delete them because I couldn't findit on the acttivity log?? Please help!!!!!