viki wrote:
is there something i can do at my own ?
It depends on the real problem and if you accept that there are risks that can potentially result in total loss of your data.
You could have some serious mechanic problem with weakened, failed or failing recording heads. In such case you would need a professional.
Possibly you could have damages surface sectors, maybe possible to work with yourself, but with each attempt to read, write or even power you could be further worsening the condition.
It could be a logical issue, partition could be damaged. this you can very likely do yourself.
But first you need to 100% identify the exact problem you have. Does the Hard Disk make any unusual noises? does it stop powering at any time? Has it been 'knocked' or fallen?
Did you try access the disk with tool like MHDD or Victoria?