Check out the STR forum where you'll find some great information and will see questions and answers from those who have successfully scaled STR businesses. 

Quote from @Devin James: Quote from @Andrew Syrios: “If you want to increase your success rate, double your failure rate.”- Former IBM CEO Thomas Watson This is my first time hearing this..

Reading about successful people strengthened my resolve.

I used to cold call, skip trace, send mailers, and don't get me wrong you will get success from it like James above, however as you gain experience you will realize you need deals faster, easier, cheaper, and with more "meat on the bones" and in order to have that you need constant deals flowing through your eco system and that's hard to do with mailers, cold calls, VA's and skip tracing etc.

Successful BRRRRs are challenging enough to do local to you.  

We’re using it with a lot of success in our real estate investing business.

You also do not want to be too cheap and leave money on the table.If you do all of that you will be well on your way to being successful.  

While the sector presents promising opportunities, operators must address challenges related to sustainable expansion and regulatory compliance to ensure long-term success.

Congrats on a successful first fix and flip.

I am wishing everyone great success!