One of the easiest ways to practice conversation without having another person around is to ask yourself simple questions.
For example:
Где ты живёшь?
gdye ty zhi-VYOSH?
Where do you live?
Answer out loud.
Я живу в Атланте.
ya zhi-VÚ v at-LÁN-tye
I live in Atlanta.
Then another question:
Что ты делаешь сегодня?
shto ty DYE-la-yesh see-VÓD-nya?
What are you doing today?
Don’t write the answer.
Say it.
Even if the answer is extremely simple.
Я работаю.
ya ra-BÓ-ta-yu
I’m working.
The goal isn’t to impress anyone.
The goal is to make your brain hear a question and immediately start searching for Russian.