Never never never bankrupt yourself.
It costs YOU money, and the court takes a dimmer view of people doing it, convinced they are attempting to “get out of” rather than cannot pay their debts. They’ll look more closely at recent transactions you’ve made, especially giveaway stuff to friends and family. They’ll also go after your house for unsecured debts, which you really don’t want to happen.
IVA’s are no better in that they carry a high packaged commission charge, last a hefty five years and will involve paying 25-50% (bankruptcy lasts 1-7 years, pay 5-10%, walkaway lasts 6 years, and involves zero payments)
IVA’s still allows them to go after any newly acquired assets at the 4.5 year in mark as well, including any new equity you might have built up in your house or pay rises or inheritances you may have come into in that time.
I looked at doing an IVA once, and walked away when I read the small print. I offered them £15k in full and final settlement on the spot, which they refused. So I ended up paying nothing at all, and now it’s over 6 years hence, it’s too late… Whatashame!

Citizens Advice informed me beforehand that “if you make a reasonable full settlement offer that the creditors refuse, then they’ll subsequently lose in court if they attempt to take action against me there” - this turned out to be accururate, as I didn’t get anyone turn up demanding money, or a single letter summons after they turned down my IVA offer in 2004!)
They didn’t bankrupt me either, because they presumably knew that the court would award £1 a month, which they were obviously not going to be interested in if they thought a £15k up front cash offer was “no good” - right?
Don’t do their work for them. Just walk away, change your numbers, sit tight. It costs a lot of money to pursue debts, and they just won’t do it unless you have serious amounts to grab. £15k didn’t seem to measure upto that, so most people in debt are not even going to have that kind of money lying around are they? 