I'm just making super simple designs on Aida fabric. I've literally made one thing so far.
The back of my finished project mostly consists of what I think stitches are supposed to look like: they're little straight lines with nothing behind them. But then there are areas that are just thick and padded with floss. I can show you a pic if I'm not being clear/if you want to be horrified.

I think I'm doing the stitching wrong, but I'm not sure how. I just started my next project, and the same thing is happening, my first row looks like beautiful little verticle soldiers, but the next rows have extra floss and then the straight stitch is sort of wrapped around it.
I want to get into the habit of doing this the right way, so could someone tell me what I'm doing wrong? I think it has to do with something I do when I come back after doing my half stitches. I make the x's, then when i start the next row up, things get wonky.
Thanks! Sorry for embarrassing all stitchers ever with this questions!