How do I get to Hello World?

I’m working my way through the first Plutus Tutorial I came across Using Plutus Tx — Plutus 1.0.0 documentation

But nothing seems to work. Are there more up-to-date tutorials?
Is there a way to get the attention of someone who knows the answers?
(I’ve also tried posting to various discord channels to no avail)
I’ve posted the following four questions to cardano stackexchange

6514
6516
6518
6523

(I would link to them but forum won’t let me include more than two links in my post)

You could join or work through the plutus pioneer program (PPP)

There is also a PPP Discord channel