First of all, speaking English is hard, and we understand that. Especially if you do not have anyone to practice with. Luckily for you, in this video, Matt and Mark discuss how to improve your speaking, without a speaking partner!
One of the tips featured in this video is to think (or even speak to yourself) in English.
Are you thinking about getting a coffee? Which kind? Flavor? From where? Why not answer these questions in English instead of your mother tongue? This simple practice, even 5 minutes a day, will lead to a more fluent, and more confident English speaker.