At least once a week if not more, depending on if work, goto school, etc. Be prepared to accept the fact that you may only get like 10 views but that's ok, just keep uploading. I remember when I uploaded my first video in 2011 and it got hundreds to thousands of views in a very short time span like a week or two. I couldn't believe it and I didn't even really try that hard either but now it's much harder due to competition, algorithms, etc.