if i carry on working after declaring myself bancrupt will i have to pay my debts even though i wont have much money left over at the end of the month?
No, the debts will be included in the BR. You mention:
"will i have to pay my debts even though i wont have much money left over at the end of the month?"
You can only declare BR if your outgoings are more than your incomings. If you have a small amount of money left over at the end of the month after paying your debts then you cannot declare BR.
I had a small amount of money left after paying my debts and I was still able to go BR as although I had some money it wasn't enough to cover my living expenses.
All unsecured debts will be included in your BR. Once you are BR, if you have more than £100 left over each month you will be expected to pay a percentage into an Income Payment Agreement.
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