What Causes planets to Spin?

The world spins which are the reason for the day and night changes that we see. But what causes this world to spin?.

Simply put,
The Planets have to Spin to revolve around the sun. It can be said as the law of the universe. For example, If we spin a coin on the floor, it wont be in its same position. It will rotate in the direction its rotated (either clockwise or anticlockwise). It wont spin in a straight line. Likewise a planet to maintain its own axis has to rotate.

But what caused the Initial Spin and the reason for revolving around the sun?. Why not go away from the sun?
The general theory is  that the particles that formed the earth were spinning?.
But what if there is an exception?.

As per wikipedia:

Earth's rotation is the rotation of the solid Earth around its own axis. The Earth rotates towards the east. As viewed from the North Star Polaris, the Earth turns counter-clockwise.

But where is east, west north south in this universe?. How can one pinpoint these in this universe?.

From wikipedia:

Origin

It is theorized that Earth formed as part of the birth of the Solar System: what eventually became the solar system initially existed as a large, rotating cloud of dust, rocks, and gas. It was composed of hydrogen and helium produced in the Big Bang, as well as heavier elements ejected by supernovas. As this interstellar dust is inhomogeneous, any asymmetry during gravitational accretion results in the angular momentum of the eventual planet.  The current rotation period of the Earth is the result of this initial rotation and other factors, including tidal friction and the hypothetical impact of Theia.




This means that,
First the sun is formed


The question here is:
a) How come rotating objects and gas from different direction , later formed as planets started to rotate in a particular Direction?.