Theres no spell that will get you money instantly.You will have to actually work to get that money.Spells are an aide,not something to rely on.
That being said,write you own spell!
Its easy,personal,and more powerful.
Incorparate colors of wealth during your spell (gold,green,silver)
and ask deities of wealth.
Try using a dollar or coin in your spell too.
If you dont know how to write your own spell,perhaps you need to do more studying.
I completely agree with money spells just being an aid. When you cast a money spell, it doesn't mean it's gonna rain down money all of a sudden. Through different ways the money you've asked for may get to you but if only you're patient and you have the basic way of earning money.
What I mean is someone who sits in their home all the time and then opens his mouth and shout "FOOD GET TO ME SO MOTE IT BE!" it will not work. But if he casts a spell and takes a walk or seeks for signs, he may run into someone who sells the kind of food he asked to.
Yes, I do believe that writing your spell is much of help since it carries an essence of your very own energy. But before doing so, you make sure to have a clear mind and full concentration.
Also, I'd like to point that being more specific in your spell can help. For example, if you just mention that you need some amount of money as soon as possible, a rich relative of yours may die and you may get their money. You dong want that right? It's the best to mind all the possibilities.