Write a story about a young woman who discovers she has the ability to time travel, but every time she uses it, there are unintended consequences in the present day

Write a story about a young woman who discovers she has the ability to time travel, but every time she uses it, there are unintended consequences in the present day. As she struggles to control her newfound power, she must navigate the past and the present to unravel a mystery that could change her life forever.