A lovely and wonderful explanation...however Meditation is not a must, you don't have to do it every day, Meditation is used to experiencing the know, picking up on every detail that your senses give you, like the feeling of a pen brushing against your lips and the sound of your pets walking through the house.
Focusing on your desire of your spell work is more of a Visualization technique than a feeling the now practice. If you can imagine a pie, what it smells and what it would taste like then you pretty much have "Focus" down.
With your mention of "belief" whilst it is a minor part of the spell work, actually doing the hard miles is more important than hoping for the winning lottery numbers. No Spell is a quick fix or a simple ta da and wishing.
Overall I think this post is actual quite nice and simple for anyone starting out so props to you for writing in, its just not the only or whole way to cast a spell.