The stimulation our brains get by beeing in nature is very important for us.
When you are outside and all the little, tiny millions of natural information tidbits that are coming from everywhere, they are important for our mental health in general. Outside, look at the waves, at the leafs of trees in the wind, bugs humming around and everything. Those pattern are important.
In the confines of our cities, which give us solace on other levels, and the simplistic abstractions of our GUIs, which we love, these natural stimulations are lacking.
May I suggest to you to go outside, hiking, kayaking, paragliding, stuff like that, regularly and often?
Take a walk to the nearest park every day, look at the trees for a while.
Do something physical - start a martial arts or so.
On a personal note: I hate it too. Working out is so dump, your brain is empty while doing so and that sucks. I know. I am not a "jock" by any means. I am bored by it, I understand.
But. From my point of view tere is a clear spiral down that beins with not having enough natural stimulation going on. For decades now, I suppose?
I also want to second the other poster: it is good that you reached out.