I cannot emphasize enough the importance of a skin care routine with the proper products for your skin type. For example, exfoliation on a regular basis can help prevent acne by removing the dead skin cells which trap bacteria. Exfoliation also removes the barrier of dead skin which allows your skin to properly hydrate itself allowing moisturizers to penetrate the skin. Every 3 to 4 days is usually enough depending on your methods of exfoliation or skin type. If you have oily skin, be careful not to over exfoliate which can cause your sebaceous glands to over produce oils causing breakouts.
Two of my recommendations that I personally love are the Rocky Mountain Soap Co. Bamboo Brightening Face Polish and their Pomegranate Day Cream which are completely natural, toxin free products.
Be careful not get too much sun before your wedding. The last thing you want is a sunburn that will leave tan lines and possibly skin peeling.
Also, staying hydrated by drinking at least 2 L of water a day is key to having healthy glowing skin.