I guess you already know the rule about '-ed/-ing' adjectives.
Basically
But there are a few exceptions. Watch and pause the video to see if you can get both forms correct for the exceptions.
I'm scared - It's __________
I'm stressed - It's ________________*
I'm impressed - It's __________________
I'm delighted - It's __________________
It's filling - I'm ________
Please note that "It's stressing" is becoming more common, especially in the US.
Also, “I’m addicted” “It’s addictive” - I think they say “it’s addicting” in the US.
Other ones which have different meanings in different forms:
e.g.
"What I found off-putting about the job was the amount of work I was expected to do."
"I was put off by the amount of work that I was expected to do"