I agree with Muttley and Dave.
Many years ago (and I mean in the 1980s) I got loads of credit cards and maxed them all on things I didn't need. When making the minimum payments became a struggle, I got a bank loan, cleared the lot, and paid the loan off over a long period.
Since then I've had credit cards, but ALWAYS pay off the balance.
I use them to buy stuff on the internet because I figure if the card gets cloned better it's a credit card, not something which gives them access to my bank account.
I use a credit card for paying for things abroad, so that I don't pay the charge my debit card would incur.
I have more than one card, and I keep one of them at home - so that if my purse gets stolen I've still got a means of getting money and buying things until I can sort out new cards.
Back then banks and building societies were pushing endowment mortgages, telling you you'd have a huge payout when it matured, which would not only pay off the mortgage but give you plenty extra. I never trusted that - common sense tells you it's a risk no matter what the bank are saying!
You have to take responsibility for your decisions, and bear in mind that the salesman has his eye on his commission.