Will have to agree. Wonky extensions.
Keep practicing, man. I remember that most of the first 10 domains I bought were kinda trashy.
The reason these 2 domains aren’t more valuable than register fee is because of the very uncommon .store and .online extensions.
What you could’ve done:
Register 1 dictionary word with an extension. For example, cannabis.store (or something that isn’t taken). That kind of domain will 100% have value that is worth your time.
You can also develop the site but imo it wouldn’t even be worth it for the time you’ll spend to pamper it up. Requires technical skill, too.