Hi and welcome.
You're not stupid - we have all been in the same place as you and know how easy it is to get deep into debt.
I'm curious to know why your friend said their IVA was rubbish? I presume that they have let it fail as they are doing bankruptcy.
An IVA, if entered into properly and managed properly, is an excellent way of clearing your debts in a finite time - usually 5 years, then you can start again.
Payplan are a good firm, mine and hubby's IVA's are with them and so far we have had no problems.
However, I do recommend that you visit
www.iva.com for a list of companies and reviews and give one or two a ring. You will receive free and impartial advice about all the options open to you, including bankrutpcy, and they will advise as to the best way forward for your circumstances.