I should do a backtest with absolutely reliable data. What do you recommend me I have tried with the historical data of Metarader of TickStory and Tick Downloader but I have always obtained very different results and different from the real ones of the last month. Thank you
There are many different brokers which provides different datas so u can search for ones that provides years of data, but here is the thing every time all candles will be different, and that because they use different liquidity providers and metatrader doesnt show "normal" or "raw" candles, it shows the current broker's data which is different because of taxes and commission and spread and everything.
Also after downloading all the data from servers to your metatrader platform u should do a refresh or the new data wont be placed inside your chart!
Hope it helped, if not then please specify the problem better thank you