How to Use Mangago (pls helpppp)

So, I've been using mangago for like 2 years, but I have no idea the controls or where to find anything. I don't know where to post questions, where to check the feed, where to search for users and manga tags, etc. I only know how to search for manga and check my notifications. Can anyone help and give me a brief explanation of the controls and where to find anything? Thank you ε=ε=(ノ≧∇≦)ノ