Alright. The last thing we need to know how to say is bye. There are a lot of ways and we will only learn one. You will also need to know that the Swedish for so is så (so almost the same as in English.
When you want to say bye! in Swedish, you could say have it so good! (also using the word bra). You already have all the tools to make a guess what that is. So have it so good - bye: