If your laptop has a actual hardware problem (which is not very usual) then it is debatable whether you should repair it in the first place. Maybe it is better to buy a new one or a refurbished one from a seller like usedoffers.gr or pcrama.gr. There are also many international sellers who offer used laptops at great prices and could ship one to your location.
If your laptop has a software problem then we can teach you how you can fix it. In that way, if the same problem reappears you will know what to do.