I personally don’t think any of the “novelty” yarns (anything with eyelash hairs, bumps, pieces sticking out!) are good first beginning projects, since, like you’ve mentioned, its very difficult to see the stitches.
It is also difficult to see how you’ve been doing, to pick up dropped stitches, to un-knit, etc.
When I did my first project with this kind of yarn, a dropped stitch or any mistake like that meant (for me) starting over. I couldn’t use icnreases that had the needle going into an already made stitch a row below, because I just couldn’t see any of the stitches.
It is possible you are knitting tightly, its very common at the beginning, but with the type of yarn you have, I think that even if you were knitting at a looser tension, you still would not see the stitches.
I guess its for you to decide how well the project is going, or if you think you can make it.
If you can’t and want to save it when you are knitting without even thinking about it, and you want to knit up a quick project, try buying some really heavy regular yarn, which you can knit also on the 10 needles or larger. Your LYS, if you trust their advice can probably point out an equivalent yarn for the pattern you are following.
I’m not quite sure about the curling part. I’m assuming you’re not talking about the fabric part of it. If you knit stockinette, your project in general wll curl, but if its the pieces of the yarn themselves thats curiling, maybe its part of the look?