Your current situation sounds very similar to where I was over the summer……
After many years managing mood by exercise I ended up doing 13-14 hour days, and completely unable to switch my head off outside work. Enough to tip me over. Probably not uncommonly, I was maintaining a facade at work while starting to fall apart at home.
Usually averse to medication of any sort, I could see that not only was my work/life balance unsustainable, but my relationships with partner & children were likely to be sacrificed too. Hard as it was initially, I accepted I couldn’t handle this unsupported.
Started with 10mg, upped to 20 after a week. Apart from a rather strange, but not unpleasant feeling of disconnection while exercising, and the above noted libido issue, side effects have been minimal and seem to pretty much disappear after a couple of weeks.
Mood transformed – haven’t felt so good mentally for a helluva long time. I now realise I’ve been on a downward trend for way longer than the more recent problems, which only brought it to a head. Mrs actually enjoys my company again(!) and really connecting with the kids. GP is advising stay with it over winter to get back on the straight and narrow, then reduce dosage progressively into spring and re-assess.
Try it – you’ve nothing to lose, and if it doesn’t suit then explore alternatives with your GP.