If you dont belive in God, than dont take His name in vain.
There is no punishment, of course, if you do.
Its just not right thing to do.
When i was a child,I use to imagine superior ,extraterrestrial intelligence,creator of universe and all living creatures.Always good in nature.
Years later,when i become a doctor,I realized that almost nothing have changed in my view of life.
The good nature of superior force,in the background of life is everywhere:if you scratch your hand-the hand will heal.
The life on earth is very strong.Everywhere you can see regeneration,healing,recovery.
There is an 2000 years olive tree close to my home.Last year a few ignorant kids set a tree on fire.But the next year new branches grew up!Like a Phoenix bird rising from the ashes.
Read 139 and 23 psalm from the Bible.It may help.
Im not a religious fanatic.I believe in good Creator of all living creatures.