What did she lose by being chilled out? The daily angst and regret she no doubt has over that time spent rebelling against her Maker – if she is a true baalas tshuvah.
Have a look in Sharei Tshuvah of Rabenu Yonah. There’s no such thing as a free picnic for an adult of sound mind who made the wrong choices. If you live it up the wrong way when you’re young – the sins have to be purged somehow. Either through sincere tshuvah with the constant regret and tears or sadly other means…..