Hi Clarissa -- this is a HUGE (no pun intended) topic on the forum. If you put "skinny calf" and "narrow calf" into the search box, you'll find lots of helpful information.
Have you measured your calves -- foot flat on the floor, around the widest part? Most non-specialty boots on the market will fit a 14 - 15-inch calf reasonably well. My calves are 12 inches -- very difficult to find boots. I think Angie's calf is 13 inches -- still difficult but not quite as bad. Are you somewhere in that range, or even smaller? (At smaller than 12 inches, the only place I think you can get fitted boots is Duo -- they custom-fit them to your measurements. They're in the UK, though, and the shipping is high.)
If you don't like slouchy boots, you may have a long search ahead for a pair that fit around the calf. Know that you're not alone!
