The length of a spell doesn't matter, some are able to cast magic through movements or intense concentration, spells are to build the rthym of the magic or achieve what those who cannot concentrate long enough on what they want to manifest can't. Not saying that spells are for the weak, never that, I use spells myself, as I am sure everyone does. It's just that it makes magic easier.
Exactly Lita i love your choice of vocabulary.
your spell will manifest when you become a vibrational match with your desire when you release your resistance when you start allowing it to come into your life :)
Depending on the energy you sent to your will/intention. Sometimes,it takes hours,days,weeks,months or even years. As I heard, a spell sometime takes 28 day to manifest your desire. As an advice,after you have cast a spell, forget about it. This will prevent your energy to decrease. Hope this helps!