Long distance relationship advice?

I (19F) and my boyfriend (22M) are in a long distance relationship (almost 6 months). We live roughly 3 ½ hours apart and have to get the train to see eachother. (I can't drive bc of disabilities but he has got his test coming up soon)

Unfortunately it is so expensive to travel to eachother often. He has work a lot, which has even been getting more and more busy so he has less chances to come visit me and I have a cat that gets upset without me for too long so I can't be away from home for more than a week really.

We get along so well, we never fight really. Communication is a big thing for both of us, and while i struggle bc of past trauma (old friends) he is genuinely so sweet and is always amazing with me taking my time to express what im feeling.

It was recently that it kinda hit me how detatched I feel from his life and friends and i know long distance is hard im just wondering if anyone has any tips to help?

We game online together a lot, we text every day, we call often.

He has a rail card so that helps with the cost when he buys train tickets. im waiting for a benefits claim (wont specify) to be accepted so i can apply for a disabled persons railcard. I dont want to pay for a regular one just for the claim to come in a little bit later.