I think this is a very important observation. I've been through a divorce, and a friend made this observation to me, which I hadn't thought of, and it made a big difference.
I found a book called "Welcome To The Grief Club" by Janine Kwoh that was the right balance of humour for me. It's intended for those dealing with bereavement, and doesn't offer solutions, but I still found it useful for identifying patterns I was experiencing and understanding they were a "normal" part of grief. The brain does some weird things in grief. Only linking here in case it also helps others.
https://www.amazon.com.au/Welcome-Grief-Club-Because-Through...
Whenever I feel down I try to redirect those thoughts into some new thing that I can do now. Nothing is ever 100% negative. Find those positives, dig them up and display them.
I get through by getting into every single thing I couldn't do before. Just like when I turned 18, I went to every place I could find to get carded. Even a great relationship is work and compromises are made, and it's hard to find the time to do all the things.
This weekend I dug out my trip collection I wasn't allowed to display. I pulled out old photos and hangers that didn't make sense for our blended family but now it's just what I want. I bought some used golf clubs. I rearranged the whole house to suit me (and to fill in the empty parts).
I'd bet your dog never seen either the snow or the beach, so take a whole trip just to do it. Learn to play drums. Spend hours at a bookstore. During a bad breakup some years ago, I volunteered for a campaign and went knocking on doors. Not only did I not get shot but I made some friends, too.
Revel in this phase. Because this will also pass and you'll find something else eventually (if you want to). I'm trying to be the most single I can be to really appreciate this time and learn from it.
You know, looking back at my life so far I realize.. all of my best stories were from my single days.
Other than that, keep trying to do stuff with your time. Check out your local library for events, go an evening course that's at least mildly interesting or honestly, whatever sparks even the tiniest interest or curiosity. There are also sites like meetup.com
If this is too hard for you right now, or even if it isn't try and find reasons to speak to your neighbors or just strangers.
See someone with cool hair at the store? Tell them! "Excuse me, I just wanted to say I think your hair is really cool", or if you see a neighbor or some random person enjoying the weather, looking at a cool car or whatever, say something about it! "woah, lovely weather", "oh, nice cars here today eh?" or whatever.
It often feels weird and awkward, but sometimes people strike up with a small convo and you'll feel connection for a little bit. I used to hate these interactions but I've learned to like them, they are very low-pressure as there isn't anything to maintain.
Good luck and take care
I found out my anxiety symptoms were actually caused by my A1C being in diabetic territory (8%). High blood glucose has a direct impact on the brain and blood vessels. Random heart palpitations, breathing being off, etc. all lined up. I'm so thankful that my doctor had the experience and courage to tell me like it is and refused to believe it was anything truly serious. I brought it down to 5.5% in a few months and now have new cooking and eating habits for life. Too much alcohol can also lead to vitamin deficiencies (magnesium, potassium, zinc, etc. will need blood tests to confirm).
I kinda let myself go for a few years during the shift to remote work back in 2020. After I got back on track I even gained some muscle without weight loss and no longer have sleep apnea. Sleep quality and hydration are also important things that we forget when we are in a slump.
However, blood work showed I was deficient in Vitamin-D. So, I added some herculean dosage of fish-oil and prescription Vitamin-D to my life. After about 3 months or so, I am really starting to feel much better and I am starting to notice more productivity gains. The weather is warming up in my area too. That always helps.
It's not quite that simple. You seem to be hinting at the "chemical imbalance" theory of antidepressants, which has been largely debunked. The reality is much more nuanced and complicated.
Can you say more?
This is a good study to start with: https://pubmed.ncbi.nlm.nih.gov/35854107/
> The main areas of serotonin research provide no consistent evidence of there being an association between serotonin and depression, and no support for the hypothesis that depression is caused by lowered serotonin activity or concentrations.
Prescribing antidepressants is a shot in the dark. Doctors can't know for sure if you'll respond to them, especially because we don't even really understand how they work.
The good news is that situational issues can be fixed but it can take time.