CHF Foreign currency loan harmed

Hello everybody,

I bought a car with a loan in foreign currency

almost 10 years ago in Hungary. I was paying the installments and I paid

back the loan already and after 10 years I am owing to the bank twice

as much what I borrowed.
Now I have to pay double high installments

for another 10 years to be the car totally mine while the car actually

worth £1,590. So to sell the car won`t solve my problem.
The new

installments is as high as the half of my monthly wages so I can not

plan to have family and child with this loan because I am not able to

give them the financial background. My girlfriend and me would like to

be married and have a nice family but without help we can not for more

10 years when we will be more than 40 years old.
I really grateful if you readed my story and for any help what I have got.