I had a similar experience when I had my first proper long term relationship. I'd been having pretty good success with girls, getting results, but then all of a sudden, without obvious reason, things seemed to dip.
After a couple of weeks with sub-par game I finally thought "Fuck it, there's more to life than girls".
And literally, no sooner had I thought it, a confident girl strolls up me and I end up in my first proper long term relationship.
What had happened in my case, was i'd begun focusing too heavily on girls/sex/relationships etc. and started becoming slightly needy.
As soon as I thought "Fuck it", not only did I reallocate my attention and remove the neediness that was detrimental to my game. But also changed my state. I was more at peace with myself, and I felt more expressive and carefree.
Though turns out, inner peace, and freedom of expression are massive DHV's. And ended up solving the very problem i'd given up on.
Seems like our subconscious is always working on things, even when it tricks us into giving up
