honestly this feels like shitty advice but there's no other way to put it... I moved continents to go to university without knowing a soul in the place I would live - and I managed by basically pushing myself to going to every university event that was going on (freshers week, night outs, etc), talking to as many people as possible and barely staying in my dorm.
it was absolutely terrifying. both moving and trying to make friends. but I wouldn't change the experience and the life I've built for the world. you grow so much out of it.