Hi Kasey! Very excited to see how your house hack story plays out. I started the same way! Some quick advice:
-With the purchase price that you're working with, the 1% rule might not be the best quick analysis for your area. I would definitely ground yourself in potential rents in the area you're looing in. Also, understand what your true expenses might be. As an example, a roof of the same sq ft on a $300,000 home vs a $600,000 home doesn't necessarily cost more. However, based on your numbers you're likelihood of getting more rent than that less expensive property is higher (better finishes, etc). If you're using a percent of rent to calculate Cap Ex, you may be inflating your monthly expenses based on rule of thumbs %'s you have seen during your research.
-When you're living in the property, I 100% agree with @Chad Gilchrist so no need to repeat. Number 1 question to ask yourself, will this deal put me in a better position to achieve my future goals than my current living situation. If the answer is yes, and the post move out numbers work... TAKE ACTION!
-Last, a reminder not to worry about the home run on your first deal, it's all about getting momentum and experience. Since you're using a low % down option, once you move on to your next home your amount of capital invested is going to boost your Return relative to a traditional investor putting 20-25% down ($114K down vs $20K (3.5%), Same Cash Flow of $500 / month as an example or $6,000 annually for the property, $6K / $20 = 30% Cash on Cash vs $6K / $114K = 5% CoC). This is your advantage as a house hacker because many investors probably wouldn't even take the time with that return unless they were desperate to utilize their cash.
Feel free to reach out anytime about your house hack questions. So excited for you!