Hello, TheYui, would you mind finding your computer’s specifications and posting them here? There are several ways you can do this, but I’d recommend the following. You definitely could find tutorials on Youtube if you need as well.
You can also check them [computer specs] out through the DirectX Diagnostic Tool if you use Windows. Go to Start (lower left button of your desktop), search "Run," and enter "dxdiag" when prompted. A program will automatically startup with a list showing your computer's GPU, RAM, and other valuable information that can help us solve your problem. You should also be able to view your computer's basic specs by visiting the Control Panel and visiting the "System" section. Try if you can do both methods because I do not believe GPU is listed in the control panel. If possible, please post a screenshot or list the details of your computer's hardware listed, specifically the RAM, CPU/processor, and the GPU/graphics card.
You can either type them or take a screenshot and post it here—whatever is easier for you. There is a possibility of your computer being too old and/or not having compatible hardware to run games. It is not likely, but it is worth asking. Are you able to play other video games on your computer? I will probably recommend looking for error logs in Feralheart’s directory after you post the specifications. Considering you are using Windows 7, it shouldn’t be too difficult with directions. Plus, once I am able, I will probably edit this post with screenshots on how to find error logs.
Also, there is no need to apologize for your English! You are doing well, and if you need anything explained more in detail, do not be afraid to speak up.