Value of knowing how and able to DIY /paying someone

[John Carpenter]

How much do you save if you choose DIY ?

Do you think 30% or 40onaverage? Some cases is it 50%?
don't have mega bucks to jump in with
one benefit of knowing how its done is knowing when someone is trying to take advantage
If I own a property free and clear and time is not an issue(I understand it actually is as far as with help it could be flipped or rented faster ). but lets imagine its not

I am trying to decide if its worth it
Can do brick block and rock and everything up to shingles on roof
And am friends with hvac and a plumber and several electricians where I cannot diy
I think that DIY is the best option for me to get into investing as its the only part of the game I know
Lots of things to read and think about here at bigger pockets
And I have to start somehow