Press the button on the bottom right to turn on the panel, then undock using the orange button. Use WASD to fly, and the buttons on the left are for stabilizing movement or heading.
When you’re flying to the correct coordinates, press the heading stabilization button and fly (you don’t have to hold down the W button, when you reach enough speed, the ship will fly by itself using its own momentum).
The button on the bottom left is for faster speed (but the ship will heat up faster, so I don’t recommend using it initially until air conditioning is installed).