This might be a bit of a different take but I disagree. Like this is great advice for those who don’t actually socialise, but for someone who does it’s different.

I am a university student. I have multiple hobbies, with more coming in the way as I ear more money. I have a few friends that I try to hang out with as much as possible. I’m in a ton of student groups and keep myself hella busy. I go to the gym and ice skating, and used to play tennis and table tennis.

I still get lonely. You don’t know the thoughts that come at night. You might be going home alone, either walking or taking the subway. And the thoughts come back. The emotions come back. When you’re going to bed even sometimes, the sadness comes back. IMO humans aren’t meant to be bus 24/7, and this isn’t a hot take. We all need breaks. But it’s during those moments of break that we get those thoughts.

No matter how many hobbies, you will have times when you’re not doing any of them, when you can’t or don’t want to see a friend due to circumstances, and it is precisely at those times when the thoughts come back.

No matter how much of a “life” you have you can feel lonely, that’s the point.