you must use arguments to explain how you arrived at your conclusion. That is how you will convince others: by offering the reasons and evidence that convinced you. It is not a mistake to have strong views. The mistake is to have nothing else.
Expect to rearrange your argument several times to find the most natural order.
If you are not sure about the reliability of a premise, you may need to do some research and/or give an argument for the premise itself (see Rule 31 for more on this point). If you find you cannot argue adequately for your premise(s), then, of course, you need to try some other premise!
Likewise, do not try to make your argument look good by using emotionally loaded words to label the other side. Generally, people advocate a position for serious and sincere reasons. Try to figure out their view— try to understand their reasons—even if you disagree entirely.