Always though of myself as a decent enough looking guy and never really had problems even talking to women I found attractive.

Following a breakup and me hitting the lowest point in my life (unrelated) I feel like I've completely lost my "mojo" (not literal libido). Like I don't even see myself as a sexual being? I'm not sure how to describe it. Perhaps like how a 60yo man feels about walking into a room full of young women. Not intimated, not necessarily disinterested.... just invisible? I know my own outlook certainly isn't helping, but the loneliness is kind of a self-reinforcing cycle.

If you think it's just minor then maybe you need to just keep swinging until you hit something. If you think maybe there's something underlying in your life that you need to adress, hitting on women probably isn't going to help.