Ah good luck my dude :)
As the resident perpetual student (about to start my 3 year PhD studentship, which will put me at a total of 7 years of post high school education when I’m done...) I can only say that rest assured, it is certainly easier the second time around.
I was literally the biggest introvert when I started my undergrad, but by the time I started my Masters meeting new people and making friends felt super easy. Everyone is in the same boat kinda, you know, so most people will want to make friends and be just as nervous about it as you.
Anyways, you’ve definitely grown and matured a whole lot since I first met you, so I have no doubt you’ll do great! Kinda a shame that you are restricted to online at the moment, but at least it’ll allow you to ease into things.
All the best man!