Seeking Words of wisdom from pro/seasoned rehab/flippers WWYD?

[Mike G.]

What Would You Do? 

Knowing what you know now from experience ?

So i was having lunch with a friend of mine the other day and he said something that I know but at the same time really hit home. 

He told me that you cant fight a war today with a bayonet from the Civil war era. The metaphor here being that in my local market here i cant approach investing in 2018-19 with 2008-2009 investing strategies and tactics. 

Makes sense right?

So I can ramble on forever but ill leave that to Led Zeppelin alright. . . . . .  .   

If you were starting over and looking to get into rehab/construction/flipping what skill or skills would you seek out to become the BEST rehab/flipper in the LEAST amount of time?

Should i go to a trade school 

should i network and find a local rehab/flipper guy here and try to apprentice with him for free or small amount of pay for grunt work?

what skill should i learn or skills?

Electrician, Masonry, Carpentry, Plumbing Painting, am i missing anything. 

knowing what you know now, how would you redo what you did? 

any and all opinions and insights are welcome. 

looking to learn and grow here so thank you all. . . . .