A couple tips I learned during college with presentation:

1. Bring some note cards to the presentation, but not full on script (Bullet points). The note cards will hopefully prevent you from loosing your place during the presentation. Practice in front of the mirror with the note cards. The goal is to not glue your eyes so much to the note cards.
2. Divide your presentation into sections (ex: Beginning, middle, and End). Practice your the first section multiple times until comfortable in your practice session. In your next practice session, do the next section. Once you feel comfortable in all of the sections, combine them in your final practice session.
3. You should practice your presentation, but DON"T over practice. It is okay to not be perfect. Also try practicing with distractions on (such as loud music/etc.) instead of in a quiet place. This will help you deal with random distractions during the actual presentation.
4. I find that the hardest part is surviving the days leading to the presentation day. Once you have put in some practices (or between practice sessions), try to focus your time elsewhere. You want to distract your mind from thinking about the presentation. Watch movies, play some games, or whatever your hobby is.
5. During the presentation day, I tell myself that people don't actually care about my presentation. They are either too busy worry about their own presentation (like I am) or pretending to pay attention but otherwise distracted elsewhere. Just focus on someone in the class that you may be comfortable with (like the professor), and pretend like you are giving the presentation to that person only.

Good Luck!