Be a good steward of your finances. What does your budget look like as a single person? What will it look like when you're married? If you haven't budgeted before, there's no better time than now.
I'm no professional and every person should get counsel regarding handling finances. Here are the categories to consider when budgeting: savings, the wedding, honeymoon, furnishing a new place, and everyday living (tithings included).
This is where you ask your wedding planner what's the most realistic for your desired number of guests and in what city. It ranges depending on what side of the I-5. Your wedding planner could also get you a good list of venues, vendors, and ideas for decor that would fit your needs.
I won't get into the other categories because every person is unique. But let us know if we missed anything!