Michael Muller

The Three Things Lauren Conrad Wishes She Could Tell Her 18-Year-Old 'Laguna Beach' Self

In honor of her upcoming 10-year high school reunion, the entrepreneur is offering some advice -- to the girl she used to be.

When Lauren Conrad was a carefree teen on "Laguna Beach" back in 2004, she was just graduating high school with her closest pals, living out an unforgettable summer right on those magical shorelines pictured above and trying, as best she could, to prepare for life in the "real world."

We already know what Lauren's friends predicted her future would hold, but these days, the "Hills" alum, fashion designer and best-selling author is not only busy planning her upcoming nuptials to fiance William Tell, she's also gearing up for her 10-year high school reunion. (We'll certainly be on the lookout for some perfect Instagram photos with former classmates like Stephen Coletti and Lo Bosworth.)

In honor of the milestone occasion -- times really does fly -- the Cali beauty took to her website to answer a recent fan question she received: "What are three things you wish you could tell your 18-year-old self?"

Michael Muller

For starters, the erstwhile MTV star has an important beauty and health tip for the Lauren of the past: Wearing sunscreen is a must. "When I was a teenager, tanning was the mode du jour, and I was all about getting that sun-kissed (or tanning bed orange…) glow," she says. "I felt invincible and never thought twice about the skin damage caused by UV rays." But today, Lauren believes that a natural skin tone is the way to go and won't leave home without her SPF.

Another thing to remember: Embrace your youth and low level of responsibility. "When I was 18, I was in a hurry to grow up," she explains. "Instead, I wish I would have taken a beat to just enjoy being young."

Finally, Lauren offers perhaps the most important pointer to her past self: Don't be afraid to stand out from the pack.

"For so long you've gone to school with the same people, and everything you've done is with the same group of friends in more or less the same environment," she says. "Then, for the first time you get to go off on your own and make real, conscious decisions about where you want life to take you. You get to choose your school, your major, and what kind of person you'll become. So when you’re making these decisions, be an individual. It’s the best way to discover who you really are."

+ What do you think of Lauren's advice for her 18-year-old self? Sound off in the comments, and watch her and her buddies predict where they'll be in 10 years...10 years ago.