How much will this effect my progress?

Okay so I'm an honest person, and I'm gonna come clean and say that on day 12, the furthest I've ever gotten, I just relapsed. I feel annoyed and everything, but I'm still proud to have made it past 9 days (my previous best for about 3 months).

So, I was at my computer alone, typed in a porn site, saw all the thumbnails, looked away and then I masturbated for what must have been about 20 seconds, and then I O'd. I hardly even ejaculated. All of this must have been 30 seconds maximum.

It was very quick, and although it was still a relapse, will i keep any of the benefits I've started to feel? Lately I've actually been happy, and people have noticed. I haven't been that happy in maybe a year. Now I've relapsed I feel like I'll go back to being depressed all the time. If I was to get another good streak, would some of the benefits from this previous streak still be there?