Ok guys! thank you very much! I will follow your suggestions:)

If you want to chat, you can join a website like hellolingo.com; italki works differently.

Write a notebook every day on some topic, for example tell a story about your interest in your target language, then you'll find language partners through your posts and your interests. I saw your first language is Italian, so you might easily start off by writing a short entry (in English) about what it's like in Rome and what someone visiting for the first time might want to go and see, and what they need to watch out for. What doesn't work on italki, it seems, is sending random personal invitations to unknown people asking them to be your language partner without them knowing you at all. I've regularly seen people post about the same problem you're having, that is to say it's difficult to find language partners out of the blue. The key lies in starting using the "notebook" or "discussion" sections to get in touch with people.

You have to add people in COMMUNITY - language partners. so when they accept you, you can talk with them. ;)