Hi.
Your post is quite interesting and many issues have been raised.I shall be able to answer a few only.
Sikhism ,besides other, lays a great stress n the control of mind that leads to the control of our senses and hence the desires and expectations are tried to put under control that is , as we see, is the single most reason for the inner disconnect that becomes the breeding ground for the malfunction of the mind.
For the control of mind sikhs lay stress on Simran and remembering HIM through the meditation techniques. The meditation techniques are same and common in all the practices.
Your two questions have been answered.
As to why you ought to be a
Sikh is rather a personal decision than a point of discussion. If you are new to sikhi ,though you were born in a
Sikh family, it is suggested that you may read more about
Sikhism. If you want some specific reading material you may find a lot here on this forum.The forum, ofcourse, is meant for discussing about sikhs and
Sikhism.
All the luck in your endeavors.