It’s going to be hard. I’ve tried it once when I had been with someone for eight months, and it didn’t work. But, I’ll give you some of the things that did seem to help at least:

• If your relationship is physical yet, try finding ways to explore that over Zoom/FaceTime while away
• Do things together at the same time. Like watch the same tv show/movie at the exact same time and text back and forth during it to comment on what is going on. I think Apple has some feature like that that I haven’t tried, but you don’t need that, you just need to start the show at the same time.
• Same thing for books or video games.
• Communicate. You or your partner will need space at times. Let that be okay and let it be okay to communicate that need.

Good luck to you.