Amy Pitzel used one word to describe the old living room and dining room in her family’s Katy home: sad. They had drab finishes and furniture, but until recently, she never felt it was the right time to do something about it. When she retired from her job as a government teacher and cross country/track head coach at Katy Tompkins High School last May, though, Amy decided it was time to focus on her family’s house. It helped that her 13-year-old daughter encouraged her all along the way, gathering ideas on Pinterest and Instagram. A MODERN UPDATE: Bellaire home near Texas Medical Center gets stunning modern makeover It was Amy’s…