Oral speech and pronunciation
Spoken conversations are somewhat harder, because you have to react fast and possess enough grammar and vocabulary to express your thoughts in a quick and precise manner. In the same time, using intonation, mimic, gestures gives more means of conveying ideas, even if you can't find the necessary words. As a matter of fact, if you can formulate something in writing, you can say the same verbally. Your ears and tongue just have to get used to live language, after some practice the speech will gain fluency.
Some people you talk to might laugh when you start practicing your speech at first. Don't be concerned, they just find it cute and amusing to hear ordinary words in such interpretation. Tune your speech to native speakers, try imitating what you hear. Each person has their own way of talking, so listen a lot to understand the general rules of pronunciation.
Movies and TV series give an opportunity to hear the speech of many people at once. It's better to watch them without the subtitles – they only distract from immersion into the language, not to mention that there aren't that many subtitles to Turkish movies and especially series. You'll recognize familiar words from the passive vocabulary even in a fast speech, and that'll give you some idea about the plot; visuals help understanding the rest. Watching the movie again in some time, you'll realize with the pleasant feeling of achievement that this time you understand much more.
One of the means of practicing pronunciation is reading out loud. Though I haven't practiced it, but I think it can be useful.