I have registered to mediawiki.org and subscribed to the wikitech-announce mailing list and, also have learnt the given page regarding for this...

Hello all ! Could anyone can tell me how can i start a project on this? Is there is any tool or interface on which I have to work?
Please tell me, I am the newbie and first time I am going to take in Outreachy.......Please tell me the step by step procedure for this.
I am really very confused and worried about this......
Please help me.