I too started as did most with a fly tying "starter pack " and if i am hounest most of it i off loaded to other beginers to start them off .As pointed out the proportions are more important to get to grips with than the materials used , use your pack to practice with , get as much tuition as you can and pretty soon you can advance on to the better quality materials that all of us fly dressers find we just HAVE TO HAVE
A lot of fly fishing clubs have meetings in the quieter months of fishing and what now seems hard will all fall into place , you will be amazed at how quickly it can be picked up and if you are stuck on anything -- type on here and someone will be more than happy to help .
good luck and have fun