Phd update

Yes, I have not been writing for a while. I am too pre-occupiedwith alot ofthings; namely my phd, whatelse is new?

Summary of the past couple of months; submitted abstract for 2 conferences and both accepted; 1 for oral and optional paper for proceedings and the other is poster with option to submit to a special issue of Fuel (high impact). So the paper to the first conference was prepared, submitted and had 'major' correction, but turned out I had to rebut their comments, i didi not make any major correction and it was accepted.
I was thinking earlier; the first time O received their reply wrt the abstract I was crushed with their harsh comments. I was really down but after about a week or so I was able to overcome it and wrote back and it was accepted. After submitting the full paper I got a reply; I was again crushed with but not as bad as the first time, it tooke me about 2 days to recover amd was able to rebut the reviewer's comments. Now i am nervous going to the conference not so much on doing the presentation but the 5 minutes q&a session. What if the questions hurt my feelings and i am not able to answer it properly? Am i going to take 2 days to answer? What if its my actual viva? How am i going to answer especially harsh comments?? All this while I know the answers as its my work, but what if when i explain, people dont understand? What if the examiner dont understand during the viva and he's not satisfied etc etc etc... I am full of worries and i overthink. To top this all, i recieved an email earlier saying that i can do an oral presentation instead of poster if i wanted to.

Thats the beginning of my agitation..