You can always offer Isha prayer with the calling too. You don't have to wait any long. I usually offer Isha prayer between 8pm to 9pm.
And yes we have our laws and morals. Islam provides guidance in each phase and aspect of life.
Like eat and drink using right hand. Meat of chicken, goats, sheep, cows, camels, deer and fish is Halal. Pork is not allowed. Alcoholic beverages that cause mental instability are not allowed.
We are taught to respect our body by not showing it off in public. Physical relationship before marriage is not allowed as they are big threat to family structure. That is why muslim countries usually have a strong family structure.
And if we come to laws and punishments then there are some strict laws to lower crime rate. To apply those laws is usually dependent on each country's government.
And one big moral value in Islam is that if a person kills another person without revenge of some murder or any actual reason(like state order) he will bear the sin of killing all humanity. And if a person saves another person's life, he will be rewarded as he saved all humanity.
And then this beautiful right to women that their husband will bear her expenses but she is not obligated to spent her money on him.
There are a lot of guidelines regarding each aspect of life so you never feel lost. I would love to answer all your questions if you have more.
Oh and one funfact, whenever you have a question that you can't seem to find answer to just open Quran from any random page and you will find your answer in the verses' translation or explanation!