When I started quilting I was afraid of the binding and struggled with corners, just like everyone else. I started out with 4" bias strips, folded in half and ... well you know the process. That was OK for a few quilts then I began making my binding more and more narrow as I became more skilled. I now use 2.5 inches and sometime just a smidge larger depending on the look of the quilt and amount of fabric I have left to make the binding.
To all of the new quilters, the more narrow binding is actually easier to use but I sure learned a lot while trying the wider binding too. Be gracious with yourself and do what feels right for YOU.