The short answer is that this is not a good candidate for a sweep. A helmet is not a good place to start learning surfaces.
Yep, that's quite ugly. I'd try creating the other end of the sweep as a sketch, and then use boundry to create the body. I noticed that you are using a solid feature for this. I'd use surfaces and knit them into a solid later. Getting this shape right will require a lot of trial and error.
Also, I agree with Eric. This isn't an easy project for an experienced modeler, much less a beginner.
thanks so much. I was able to use the loft nicely.
I hav ean additional problem with the back surface of the helmet. I have attached screenshots of what it should look like. I am just lost on how to accomplish that.
I tried using Surface fill, and it kind of worked but makes the surface wobbly. A guide curve didn't really do what I want, but maybe I am not defining it correctly.
I also can't get the little rim in red to align with the surface and was wondering if there is a trick to that.