For the past five years, I've been making something every single day. Mostly photos, but now I've made 53 videos in 2016. These 365 projects have been extremely public, showing my failures and vulnerabilities in my work day to day.
I've heard the argument that people who make things should work in secret and then start releasing work when they get good. It's a good (probably more humble) approach, but I don't think it's true for everyone. Also, I don't know when you decide you've gotten good.
For me, I've always benefitted from accountability. I need people to give me a hard time. I need critique, otherwise I'll start filling my head with delusional thoughts. Some have said making something every day is a path to failure, a way to doom yourself to never making anything truly great. I think I would have really failed if I didn't put something up every day.
After not completing my second 365 photo project, I saw what it looks like when I don't feel obligation to make something everyday: I don't make anything at all. Why would I? There's no pressure. I work better under the gun.
But a day isn't really enough time to fine tune and create something really great, which is true. However, once you start a daily project you learn quickly that the "daily thing" you're making doesn't end up being the only thing you make. It's intended to jumpstart your mind and get that engine going. Once you create something every day, you feel unstoppable. All the sudden, you'll have 1000 other ideas to sort and deal with that day.
That's all to say, I do have secret work. I have work that I just need to tweak and tweak and tweak that just doesn't feel right yet. I have two photography series that I just haven't managed to get to make much sense yet. One of them I've been working on since 2013.
The answer is, do both. Make some things in secret, while also making something every day. We live in a time where it's harder to make a living off art or music or whatever, but it's not impossible. All it requires is hard work and less Netflix.