You! Yes you are responsible for it all that happens to you because we are always doing magic. Our thoughts and beliefs create our reality whether you are aware or not. The only difference is that when we do a spell we intentionally try to make change, and try to impress it into our subconscious beliefs.
This post is kinda special because not knowing this is Killer and destroys the hopes and dreams of many and absolutely breaks my heart to see it happen...
Anyways enough mooshy stuff hehe it's getting sticky in here now
You should already know we are energy and we all have certain vibrations and the universe pairs us with similar vibrations. We vibrate at the level of our consciousness aka our beliefs. Positive vibes make pleasant experiences. Negative beliefs create bad experiences, but hold on there. Just because you know something that's harsh and dark doesn't mean you should hold on to its dark form, life wants us to learn from it grow up and be come stronger because of it which makes an amazing vibe!
So to sum this up, the main reason spells and workings fail is because we are not in sync subconsciously with what we want. Because maybe we don't feel worthy, feel anxious if it will happen at all or its too good to be true or some hidden belief in your subconscious. This is truly the hard part in mahic, anything else is just a means to help this process on my experience.
Oh and lastly we need to believe our spell is in the now not in the future because your subconscious doesn't understand time it only knows now. I think affirmations have an advantage here because they make you feel what you want is now and are usually more heart felt which is needed to feed your desire to come about.