Why is it so hard to change my avatar? I jump through this hoop, and that hoop and finally get one that is accepted only to get the message that the upload failed.

I went through this before. Why? Why does it have to be so daunting? I'm still not quite happy with it even though I get the message that it failed, it does change but I had to settle for mediocre results. I had one version that looked much better and was under 15kb and was 80x80. Forum wouldn't accept it. I don't get it. Seems like I have to ruin it to make it work.