D.P.
I've worked in a trade show capacity for years, and, seriously, you might want to think about working FOR an event planner before starting a business of your own. There is SO much to know, and know well. Because in the end, it's YOUR butt on the line for someone's EVENT. Their important event. That means a LOT to them. There aren't really "practice" events! LOL
Find a good company that's hiring.