The previous thoughts were very strong. I might also suggest that if you are reading the play, you might want to consider watching a cinematic version of it, as well. Naturally, there have been film versions of the drama, but I would like to go off the path a bit. There is a Bollywood version of the drama called "Omkara." It is directed by Vishal Bharadwaj and is a very good version of the tragedy with a Bollywood point of view. I think the characters are a nice rendering of the Shakespearean characters and the exploration of the themes in the play can be seen in a stellar counterpart to the play. If you didn't understand Hindi, seeing the film with subtitles can help deliver a modern English version of the play to enhance understanding of it.
The previous post gave you an excellent response: Othello was written by the finest writer ever to write in the English language. The alternate modern text should help you if you are having problems following the Elizabethan English used in the play. You might also consider finding a recorded version of the play and follow along as your read. I found this very helpful with my readings during my Shakespeare classes in college. If you still need help, you may want to consider yet another guide that summarizes each scene. Hopefully you will get some enjoyment out of this fine Shakespearean play. Good luck.
If you wish to find a Modern English version of the play, you have come to the correct site. For, enotes has the original test with a modern text right beside it. Check out the site listed below for this modern translation of William Shakespeare's Othello. Also listed is a site where you can access a summary and analysis for each act.
If you have a version that is available in a college text, it, too, will have notations that are usually helpful.
nfs othello on sparknotes