However, you need the temperament/skills to pull it off.

You can get around the by partnering with someone with PR and language skills.

The deal fell through because I couldn't line up the financing during COVID......God/Universe has a way of looking out for us...As investors, a crucial skill we develop is to take our emotions out of the situation/deal, but that is hard when we have invested a lot of time and money into a deal. 

Many of them might be skilled folks but they are not always the best estimator and business person. 

First, it fast-tracks your learning as an investor - you are forced to develop better time management skills, build your network of reliable contractors/ handymen, etc..Second, when you are ready to transition to a property manager, you are well equipped to evaluate and hire the right company.3.

A successful STR needs a good bit of cash upfront and if you’re doing a BRRRR then even more now for rehab.  100% financing everything and the rehab is not advisable unless you’re a very skilled and hands on STR investor.  

Over-relying on a coach for every decision can hinder your ability to develop critical thinking skills and confidence in your own judgment.5.

Learned some negotiation skills through this deal.

Quote from @Marc Winter: Of course, a skill like that is marketable! 

They also appreciate honesty and transparency so they can make decisions fast without any surprises.Some of the top skills that you can focus on are:Comping: Knowing your comps inside out is a must.Negotiation: Being able to connect with sellers and strike a good deal is huge.Networking: Relationships with buyers, agents, and other wholesalers are invaluable.Also, Get to know your local market being able to talk the talk in your area will help a lot.