You should def post a song. I would love to see you play something.
There’s a whole section for Audio or Video of you playing here: Audio-Video Of You Playing - JustinGuitar Community
If you are embarrassed to post (don’t be, everyone starts somewhere, and the community is really helpful) could always post in the beginner safe space thread where everyone who posts is just starting so there isn’t a lot of pressure to perform really well: Beginner's Safe Space 2021
You could also post directly in threads where it’s relevant, which may be here. Though that might be up to mods to decide.