I’m pretty interested in golang but I don’t have any projects that it applies to and I can’t do anything with it at work because the other developers don’t know golang either :(

Make a docker clone https://youtu.be/8fi7uSYlOdc

Dude, work is work, what you are looking for is called hackathon 🙃

Go is a tool, a pretty generic one, yet it's a tool with certain properties. If you really really want to use it you should have a use case for it. This can be a private project, you can join an open source project.

There might be even a few cases at work where Go fits better than the language used. The benefits must outweigh the knowledge deficit in the team though.
Go is simple to maintain and syntax is simple enough that small stand alone tools can be maintained by someone with zero Go knowledge.

I'm a Go engineer by title now, also maintain an open source Go project but I started out similar to you. Had a few network and small tools (needed an executable) use cases where I could sneak it in. PHP and other dynamic typed languages were the tools of the company but it's hard to do stuff remotely on Windows or a high volume proxy with them. Other than that I used it for personal stuff and felt natural.