Woohoo! I moved into the "black" right after I was laid off in 2014. (These things may or may not have been related.) It felt really, really good to finally see positive numbers after 7 years of tracking my net worth! Like @Lars-Christian I finally felt like "Hey, I've shaken the burden of my student loans now, and I'm moving into NEW TERRITORY!" (even if my student loans still have a balance, I could pay them all since that day... though that would mean ransacking my retirement!).
But, I didn't celebrate for too long, because it put a new goal in my face that I'm still working toward now: working my net worth up to the positive inverse of my all-time net worth low! In other words, I'm working towards a complete 180-degree turn in my net worth, now. Hoping to hit that in just a few months here (finally!)