For me, unless I want to get critiqued about what I ate, I don't make a public journal here. I go somewhere else where I can post my journal privately. For some people though, the open journal is the way to go but you always run the risk of someone trying to rain on the parade, so to speak A lot of people are fairly sensitive when it comes to dieting and sometimes something can come off as negative, even when not meant to. Now, if you're fairly insecure, like I can be sometimes, that alone can send you spiraling downward dietwise and you end up off the track. Then you find it difficult to get back on for about a week or two. I've had that happen as well.

But as for me, I don't have the support of family or friends, it's just me.

There are many places online to find a free online journal. Most have the option to keep it private or make it public. Anyways, here's one.
http://www.my-diary.org