How to get approved with a REALLY low income?

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BACKGROUND:
Hello! I'm a junior in college with a really low, all Stafford subsidized student loan burden ($6,000 which I will pay in a lump sum at the very end of my grace period). I found out about personal finance in April 2019 and had maxed my Roth IRA by July 2019. My money comes from wages working at the front desk in a library, tutoring students, and stipends for performing undergraduate research. I've been saving since middle school, so in sum I have $10k in liquid money even though my actual income is $13k/year. My family is middle class, but my college is generous with financial aid so my parents pay the difference. I live extremely cheaply with two roommates, no overpriced meal plan, the AC is off 99% of the time so my expenses are $800/month (though my parents pay for rent...$300/month out of my own pocket including utilities and groceries mostly). If I want something I save and pay with cash, so I'm not depriving myself no worries lol. My credit score is 749--I use it to buy something cheap and random on the first day of each month and immediately pay it off. Also--I maintain a 3.9 GPA in Biology and intend to do real estate as a second job, so I'm not neglecting school or anything by thinking about this.

SPECIFIC QUESTION:

I'd like to house hack (until August 2021, then move out and rent) in the area near my college using an FHA loan, but keep getting pre-disqualified due to my low income despite having the sufficient downpayment. The houses I'm looking at are multifamilies costing around $250,000, though I'm not currently fixed on one specific property. I reached out to a few sellers on Zillow but was ignored.I have so few expenses that I can actually afford the mortgage payments, but it has become clear that I have a credibility problem. Coming here to ask for advice.

1. How do I improve my credibility to investors for someone to take a chance on me? In theory I could ask my parents, but they've supported me so much in my life already that I don't want them to take on this risk.

2. There's a real estate community where I am (St. Louis), but their meetings and programming are not accessible to me--advice?

3. Finally I'm just curious as to what people would suggest for a college investor like myself. How am I doing? What did you wish you knew? etc. 

If anything in my post is unclear I'd be happy to clarify or provide more information. I'm also not fixated on doing FHA, but I just don't see any other way of funding the home at my down payment percentage.

Thank you for reading.