Rigid Body!! Need Solution

HI TTamunathor ,

You might want to try changing some Scene Settings; increasing the Gravity will have more likely the effect you want then changing the Mass.

Things will also fall faster, but you can compensate that with the Speed in the Rigid Body World, or simply changing the FPS, after Baking the Simulation.

There is also a Deactivation checkbox in the Rigid Body Settings, you can try.

Play around with different Settings. Change only 1 Setting each time and make sure the Cache is cleared between tests.

TTamunathor, Spikey has a good suggestion,
However, first I would adjust the friction and bounciness to see if that helps.

Under collision of the rigid body properties there is a shape setting, switching this to mesh will probably work better for what you trying to achieve.

First make sure you got the effect you want (no rolling over).

If the simulation is the way you like, but simply too fast (or too slow), you can think about changing the FPS.

Well,

Simulations (in Blender at least) are pretty advanced stuff.

You might see tutorials on YT where they show you how to make a special Simulation in 20 to 30 minutes, but they probably don't tell you how long it took them to get those Settings exactly right.

If you do a lot of Simulations, you'll get faster at getting things set up right, but as a simulation beginner, you'll most likely be experimenting with settings for a very long time...the result can be really great, but it will take some investment from your side.

Rigid bodies, simulations in general require a lot of trial and error until you find the settings you are happy with.
Those YT vids Spikey mentions probably had several hours, if not days, of R&D to produce a 20 minute video.