All rights reserved. Or visualize yourself before the group. See how at ease you feel, how controlled your delivery. Divorce feelings from behavior. Use that edgy feeling that doubters call anxiety and self-confident types call anticipation to energize yourself to get going.
Action is the paramount point here.
Approach the project as if you were confident person. If I had a lot of self- confidence, I'd call the marketing manager and ask her if she has a minute to advice me on the marketing section of the report. Be tactful, but do it. Take almost any step toward achieving your goal but move on it. Remember, courage is walking through your fears.