How do you write a conclusion?

ok so if i where wrighting a conclusion about how to take care of a dog it would look like this ...

so, when taking care of a dog its a big responsibility and u always have to look after someone else now beside your self.

or u could say

so, in conclusion when taking care of a dog its a big responsibility and u always have to look after someone else now beside your self.

Example:

Something something something something

And soon or later, we got back home safely.

Conclusion to close up the essay your writing.