Magic Forums

OK so i am still pretty new to magic and i have earned a great appreciation and wonder and amazment for it. However, despite what others tell me about where to start and all, i cant help feeling that the reason i fail spells is because i dont have it in me to do it. Like "blood" wise. With this thought over my shoulder i cant help but feel what i am trying to learn is for nothing. If only i knew that i had the power to do spells, maybe i would have the confidence to match and actually succeed. So i ask you all this: is the success on magic base on your bloodline? Do you need lineage of a past witch ancestor or something (magical blood) in order to do magic? Or can anyone do magic at all and it is a matter of concentration and determination? If it does matter if you have magical blood or not, is there a way to figure out if you have it or not?