You should be okay. You had just one potato of 8oz, not all of which was green. You’d have to eat a fully-green 1 lb potato (equivalent to a large baked potato), to get sick. This sounds more like trace amounts - which may cause some uneasiness (at worst a headache and some mild stomach/gut pain) but not make you go to the ER. Your body will flush it out naturally in the coming days.

Don’t eat any more potatoes that look even remotely green, from now on.

And if it was pre-wrapped, contact the company that packed them and give them an earful.

Relax. You're not going to die.

Worst that could happen is a headache and bad guts

Hi, friend! I'm hoping I can make you feel a little better, so I did a little research! The green in potatoes is chlorophyll (which is why it's important to store your taters somewhere cool and dark) and chlorophyll can mean that there's a compound called solanine. But fear not! You'd have to ingest A LOT of spuds for any kind of solanine toxicity to really harm you. A good idea would be to cut the green parts of the potato off and, most importantly: if it's bitter, don't eat it!

You're gonna be just fine, palski! I know how awful anxiety can be, so I hope this helps just a little!

Here's an article I found: https://www.tasteofhome.com/article/can-you-eat-green-potatoes/

Youre not ginna die from a green potato lol its nbd

Potatoes green color correlates with toxic solanine (which is bitter), but not always.

You'll be fine.

Well you did just face your big fear, eating something that could make you sick. You'll see it's not as bad as you thought, nothing to be so scared of :)