Thankfully, I can still edit my post. Higher trust levels get access to editing posts longer. According to my knowledge:
Level 0: Access to edit posts for 5-10 minutes after they posted them.
Level 1: Access to edit posts for about an hour after they posted them.
Level 2: Access to edit posts for about 30 days after they posted them.
Level 3: Access to edit posts for about 30 days after they posted them.
Level 4: No limit.
Annoyingly though, polls can only be edited for the first 5 minutes after you post them, so I can’t edit my poll.
(If you want more info, here’s the official discourse post: Understanding Discourse Trust Levels)
(If you want more yapping, here’s my post: GDevelop Forum / Discourse Features Like VS Dislike)