Abby Dale, a 26-year-old orthodontic assistant, had been fighting her weight all of her life until she woke up one morning and decided she needed to make a major change.

Tipping the scales at 236 pounds, she enrolled in Weight Watchers two years ago and has lost nearly 100 pounds the old fashioned way, learning portion control, jogging regularly and borrowing workout videos from co-workers.

Dale's determination impressed Weight Watchers. She won their Inspiring Stories contest, including a makeover session with the one and only Tim Gunn to dress her slimmer figure.

Dale, who calls herself "a jeans and t-shirt kind of girl," is still getting used to her new body and recalibrating her brain to her new size. According to Gunn, that's a process many women who have lost weight experience.

Gunn will guide other women as they undergo personal transformations of their own on ABC's new show " The Revolution," starting Jan. 16.  Gunn gave "GMA" his top four tips to style your changing body throughout your weight loss journey.

1. Follow three fashion fundamentals: silhouette, proportion and fit. When they are in harmony and balance, anyone can look fabulous.

2. Invest in the essentials: wrap dresses, belts and skirt/top combinations. Each of these items can be introduced into the wardrobe at any point during weight loss and will have long lasting staying power as you continue to lose weight.

3. Shop smartly: when people shop on a budget they are more mindful about how new items will fit into their wardrobe and lifestyle and how they will transition throughout the weight loss journey. Think strategically about your overall wardrobe and how the garments you are purchasing will fit in.

4. Embrace your shape: even if it seems that everyone is wearing a particular style one season, be sure to evaluate how it will work with your shape before committing to purchase it yourself. Embrace your own shape - it's beautiful - and adopt the trends that accentuate your best features.