I am currently a first-year Ph.D. student, before that (as I have posted about before) I was forced to leave my Ph.D. program after one year because of a bullying supervisor. Previously, I made a good relationship with other researchers in my field and other scientific volunteering activities.
Now, there is a workshop at a highly ranked conference, and I asked about the possibility of sending a paper for the workshop. They don't solicit papers, however, I have a good relationship with the professor who is the main organizer of the workshop, and they voluntarily asked me to be a speaker in the workshop for 30 minutes.
The other speakers are the most well-established researchers in my field, I felt excited but afraid in the same time. I don't have yet any publications concerning the current research. I don't know if I should apologize, maybe the professor does not know that I have been kicked out from the earlier program. I don't know what I should do, all the speakers are the elite and I think I am not deserving to be among them as I don't have the same experience.
Should I try or would this be counterproductive to my future career?
Thanks for answers encouraging me to try, while there are pragmatic answers that I don't have to waste the audience time, honestly, I have self low esteem since all peers have papers published in top journals and conferences, I don't know why the organizers listed me as a speaker, I am not doing great as other students or there is no indication in the right moment that I am doing fantastic research.