What is Hinduism's caste system like?

The Caste System has 4 classes and 1 class that people don't really include as part of the caste. The highest class are the Brahmin. They are teachers and priests and are believed to live perfect lives. Therefore if your a Brahmin you will (when you die) break free of reincarnation and go to heaven. The next class is the Kshatriya. They are warriors and protectors and are expected to enforce rules. The next class are the Vaisha. They were merchants and traders who had to farm the land and tend the cattle. Finally the last class are the Sudra. They were laborers who were treated like slaves and they weren't allowed to take part in rituals or study the sacred texts. Then theres the untouchables. They were so low that it was considered bad luck to even look at them and they weren't even considered part of the caste system. They would do dirty jobs such as burying bodies and they would get their clothes off of corpses.