Your marriage sounds somewhat lonely. He won't do any of the things you like
Well, to be fair, op’s dh has moved to the coast, so that’s a fairly big compromise!
But, generally speaking, I agree that a couple need a balance of doing things together and doing things individually.
Op, did you post because you want advice about your marriage? Or do you want advice about how to branch out on your own?
This seems like an issue where the balance of power in your relationship has swung too far over to your dh’s preferences, but you have autonomy and agency op. Now is the time to be brave and start doing some of the things you want to do either on your own, or with a dog, or with new friends. You don’t need your dh’s permission! Don’t mention it in advance, just do it!
What is holding you back so you think? Anxiety, or finances, or something else?
Why not advertise on your local Facebook group that you are looking for female companions who are interested in walking at the beach every day? I was a military wife and then an expat wife for years and this was my tactic whenever I ended up somewhere new, except I centred my activities around the local park. I’ve never not had a response. Then you can all start going for a coffee after the walk. And you build up things from there.
If you are still interested in staying in your marriage and you still love your dh then I suggest you focus on your health, your friends, developing more of a purpose in life (work if you are not doing so already , or volunteering related) and something creative. I think a pet such as a dog usually brings good people in to your life too.
It isn’t fair that your dh dictates your daily schedule and activities. Is he controlling you in some way? Or are you allowing yourself to be controlled?
How invested is he in the marriage? Is he making any effort at all or is he living like he is single? Gaming isn’t living. Why is he avoiding reality? Could he be depressed?
Good luck op and please come back and fill us in on the context and then people can give you more targeted advice.