I will not give you advice which is about watching something. If you want to develop yourself, speaking with someone is the most important thing. But, you should be careful about that it is good to speak with someone who is foreign. Because eventually you will be speaking Turkish. When it comes to grammer, you can try reading some assays, also writing develops your skills. However, in my opinion, the most crucial thing is speaking with someone. I also tried watching TV series, but believe in me it will increase your skills upto one point.