Bruce admits he spent the final weeks of the season believing his days were numbered at St James' Park.
But the £300million Saudi-backed deal collapsed at the end of July and Bruce remains in charge, unveiling £35million's worth of signings in the form of Callum Wilson, Jamal Lewis and Ryan Fraser on Wednesday.
"A new brush always sweeps clean, so I was under no illusions of what might be coming," said Bruce as he spoke for the first time following the Saudi withdrawal.
"There was nothing I could influence. But I always said, whatever is best for the club, I would go along with. If that meant a takeover and I wasn't here, then I was always of that mindset.
"Once it was knocked on its head it was like, 'Right, I have to get my head back on that we're going back to work'. I had to work out how we could improve and go forward."