Closing on first house next week

[Monty Shirley]

I'm new to investing and jumping right in to things I'm 23 years old and plan close on my first multi family house  next week. It's a two family that I got for 89,000 the Upstairs is a 4 bedroom and is being rented for $850/mo the dowstairs is a 2 bed that is currently being rented for $650/mo but I will need to reside in the dowstairs because I did the fha route. I ran the numbers a few times but was wondering if anyone could help me do it correct so I can figure out monthly cash flow!