Long distance relationship advice??

My boyfriend and i have been in a relationship for almost 5 months now and it's really been going good. I love him a lot and he says he loves me too but we live 2,519 km apart. I'm going to meet him in person for the first time this summer and I'm just really scared because after I'm home again idk when I'll be able to see him again and if our long distance can really last.

So my questions are:

Can you guys give me advice on how to make the relationship work for the long run??

What can i do to not be anxious or scared about it not working😭😭???