Is it possible to connect to a SQUID proxy from another network

Hey guys,

I'll warn you, I'm an amateur.

I've been playing around with Squid on Ubuntu to set up a proxy server I can use when I'm out of the country.

I was able to set it up so that any device in the proxy's network can connect through it, but then realized that it might be limited to just that.

So, Is it possible to connect to the squid proxy from another network? If so, what should I do/change?

Any suggestion/advice is appreciated

Thank you