I am a little bit terrified of this idea, considering my (lack of) success in doing similar things before, but I’m going to try it again.
To keep it a little less terrifying, I’m not going to try for a sharply-defined project. I’m just going to make 300 pieces of visual art. Drawing, painting, photography, digital, whatever. But almost every day.
I might post some of them; I’m certainly not going to post all of them. But it seems worth a try.