London, Dec 1 (ANI): Britney Spears has opened up about her marriage break-up hell.

Speaking in a fly-on-the- wall documentary, the singer confessed that she totally lost her way before her breakdown and still has bad days.

In Britney: For the Record, she says her bad times started with she parted ways with her childhood sweetheart Justin Timberlake in 2002.

I feel like I handled that break-up. I was devastated, but I handled it a lot better than the one with Kevin Federline, the Sun quoted her, as saying.

With Kevin, because I had two children with him, I didnt know what to do with myself. He just left me and I was devastated, you know?

I think I married for the wrong reasons. It just led me on a weird path, she added.

As far as her breakdown, which saw her shave her head and lose custody of her kids is concerned, Britney said: People thought I was going crazy, but people shave their heads all the time.

However, now, the singer says: Im like, Im a smart person, what the hell was I thinking? (ANI)