You can't go back, but you can get back to where you were. Flowers are in full bloom, then come winter they're hiding, Until the gentle breeze of spring wakes them up again, Colourful and basking in the sun like they were a year ago. Life isn't a yo-yo, going back and forth forever; It's a wheel, continuously turning until the starting point Becomes the starting point when it reaches a full cycle. So if you've lost who you were and you know you can't go back, You don't need to. Eventually you'll come full circle.
Title is a quote from The Walking Dead, because why the hell not?