When I started off, I didn't have much cash, but I had a good W2 job and solid credit. 

I have tried very expensive courses but they talk a big game and just leave you in credit card debt.

Set your goal on using your personal credit and cash. 

Same holds true with business credit cards (usually after 90 days for credit cards).

For sale by owner and seller finance is completely different. buyer/tenants don’t always have bad credit.

Accepting cash is a terrible idea.I"m less concerned about the credit score as many residents have poor credit.Unless you go through all the steps to qualify them properly, the best steps you can take to avoid financial loss is to not take them on as long-term tenants.

As a 20‑year‑old electrician, lean into house hacking a fixer as your primary: use FHA or similar low‑down financing, negotiate seller credits, and add sweat equity to force value and lower your all‑in.

No, of course not.

Of course by then I or someone else not living in outer space has already purchased, repositioned and resold the subject property.

Not looking for "how to aquire" specifically looking for YouTubers or paid courses you have owned that teach the exact order of the rehab and walk you through a bunch step by step