I think the worst thing is thinking you've hit rock bottom and then realizing you haven't... That there's still more rock bottom to hit, and that happens over the years...
I'm 33 and still a virgin, jobless, friendless, addicted to porn, fapping, insomnia. There were times I'd have nightmares or weird feelings while sleeping, like making roaring noises or whatever the hell was happening to me, where I'd wake up with a sore throat from the sound I was making. There were also times I felt like I was suffocating and would wake up scared. It doesn't happen anymore, but when it did, I thought I was pretty screwed... Then it stopped happening, and now I'm just an insomniac.
When I was in my 20s, and even before that, I worried about not having a girlfriend, being a virgin, and not being able to have a job. Now I realize that the least important thing was having sex and a girlfriend, as much as it was a fucking joke, because you can't live off sex and girlfriends. On the other hand, having a job to live on my own and provide a better life for my pets would have been better, so I wouldn't have hit rock bottom and know there's still more to come...
P.S. If you're wondering what I mean by touching beyond the core, I can illustrate it with this image. Now that I saw your avatar, I remembered that 8 years ago I fapped watching an anime gif and felt weird... Nowadays, an anime girl turns me on more and makes me hotter than a real woman... And I'm serious, I'm not joking. Hentai makes me climax faster than real porn...