I need to have some sort of outlet...so I also do not eat a bullet from depression...diving has saved my life as I said earlier, it is hard and scary to let it go.
A big question pertaining to what you might use to replace scuba diving is, what is it diving give you an outlet for?
Diving means different things to different people. I'll make a list and throw in some reasons people might choose an outdoor activity to begin with:
1.) Something to look forward to (but why?).
2.) Exercise.
3.) Mental stimulation in learning about and researching a new destination.
4.) 'Excuse' to enter the 'outdoors,' get 'on the water,' etc...
5.) Enjoy first hand engagement with foreign places, cultures, architecture, natural scenery, wildlife, etc...
6.) The 'challenge' of performing difficult diving well.
7.) Viewing exotic wildlife in their native habitat.
8.) Building a list of things you've seen (e.g.: a given # of species of shark or nudibranch, etc...).
9.) Enjoy an activity with family.
For me, it's be 1.), 3.), parts of 5.), particularly 7.) and some of 8.). I'm a 'coral reef + medium and big stuff' dude. There's another member on this forum who loves the shipwrecks of the Great Lakes and doesn't want to encounter sharks. Some people love cave diving. What specific itch does diving scratch for you?
Per your profile, you've dove "Truk Lagoon tec diving trip. Canada, Saba, Cancun rec diving." At your dive count, I've surprised you don't list more destinations, and it sounds like you're largely bored with your local diving.
With recent high inflation, and you having a family with 2 kids, I'm sympathetic about the cost (I'm retired, albeit with 1 kid, so feeling the pain on that). Would a 'scuba trip disguised as a family vacation' where the family could do other things, and you dive new places, be a good option? That's how I hit Key Largo, Jupiter, Morehead City (NC), St. Croix and Curacao.
If you give up diving how do we know its replacement will be viable longterm?
What did diving do for you that this replacement needs to take over?