Do I have to wear my wedding veil over my face when I walk down the aisle, or can I have it back the whole time?
Feel free to wear it back. It's traditional for the bride to wear her wedding veil over her face so that the groom can lift it after they exchange their vows (or, as many people do, so the father of the bride can lift it when he gives away his daughter); the custom goes back to the times when the lifted wedding veil represented the handover of the bride from her father's home to her husband's. Since you're a modern woman, you don't need to be handed over. You can walk into your marriage with your wedding veil thrown back.
Attire for the Bride
Wedding Accessories + Wedding Jewelry