Build a 1000 dollars application and sell it

Im planning to make money with Android applications
1) buy a 100 dollars on fiverr to create a good application for me
2)integrate admob on My app
3)upload My apps on playstore
4)spend 100 dollars to make promotion for My app
Goal:
Make money from admob and downloads of My app from 200 to 500 dollars a month and sell My app for 2000 dollars on app marketplace sites

Sounds like you don't have a very specific plan. Things might go bad and you spend 100 dollars in promotion yet you receive just a few downloads.

Sounds like a million dollar plan.
App that brings $200-$500 p/m can be sold for much more.

Good luck