Some guidance needed - lack of hope and purpose is eating me away.

So, I'm a 32-year-old male from Brazil, I’m a 32-year-old man from Brazil. I work at a bank, I’ve been single for quite a while, and I live with my two little dogs, who are the best part of my day.

For the past few months, I’ve been feeling a strange and overwhelming lack of purpose creeping into my mind every day. I work at a bank, but I find no real satisfaction in what I do. The only positives are the friendships I’ve built, both at work and outside of it, and, of course, the paycheck.

I tried therapy for a few weeks, but it felt ineffective and was just adding financial strain. I also started working out again after a long break, hoping it would help, but I don’t get any sense of satisfaction or that usual post-workout boost.

My daily routine has become repetitive: work, attempt to train during my lunch break (though I often lack the motivation), go home, play with my dogs, and then play video games until I fall asleep. I feel trapped in this cycle, almost resigned to it. It has even affected how I deal with people and problems, including at work. More and more, I catch myself thinking, “Why argue about this? Nothing’s going to change anyway.”

I also struggle with the idea of attending churches or religious services—I always feel like they’re taking advantage of people and spreading ideas I don’t agree with. Spiritism was the most "fair" version of something similar that I ever attended, but where I live now, it’s not very common. When I lived in the countryside, it was much easier to find those spaces.

Lately, I’ve also been feeling completely drained, both socially and mentally. Even things that usually cheer me up—like gaming with friends and chatting on Discord—have started to feel exhausting. I used to love catching up with my longtime friends who live far away, but now I often don’t have the energy, even for that.

What worries me even more is that I’ve started turning down opportunities that most people would be excited about. I’m not considered unattractive, and I’m tall (6'4"), but recently, I declined three consecutive sexual advances—something I’ve never done before. Most guys would be thrilled to receive that kind of attention, yet I rejected them without hesitation. That reaction has me seriously concerned.

Is anyone else going through something similar? A bizarre lack of purpose that drains your will to live and do things? How do you deal with it? I’ve never experienced anything like this before.