I think the best thing to do would be to find a good-hearted person with a lot of experience and pick their brain.

You have to find a middle ground, IMO 

How do you get accurate numbers to determine ROI? 

Future flips should focus on negotiating better deals and ensuring a strong after-repair value (ARV).

Also, when evaluating a value-add deal, what are the key factors you prioritize most? 

Those that tell you how to raise money, how to find deals etc.

New agents may struggle with periods of no income while waiting for deals to close.Solution: Budget wisely, build a financial cushion, and prepare for slow months.

How did you find this deal and how did you negotiate it?

When you start raising money, the kinds of investors you're going to get are individuals who want to make a better return than the stock market. 

So you would either need to learn a lot about how to be an awesome STR operator and you would probably need to put into your home $20,000 to $100,000 in adding furnishings, design, and adding amenities to make the property desirable.