Geez, that's uber, man. Only thing I did ever minutely related is the bottle rocket in high school time long ago. I launched indoors and made a hole through the roof of the school. ... That was the end of my aerospace career.
P.S. Don't tell that to anyone, OK? I never told anyone I did that and never paid for the roof. Geez it must been two decades ago. Sweet memory for me. Heehee. You can see my immaturity hasn't improved one bit.
... This sort of thing is fun and laid back for me whereas the above job pushed me on a daily basis to my technical and psychological limits. ...
I know how that feels. Yeah, it was really tough. Work's tough and they expect us to go through career building and also send in technical papers at the same time. (and sometimes train your subordinates for some people; not me.) But unlike me, you obviously have accomplished considerably and shouldn't feel insecure. I envy you actually. Hope you do well with your interviews.