Over all it's your body your choice. And I know how you feel, I loved tobacco in all forms, I've done everything except snuff, even those little berry flavored things you stick in your mouth let dissolve, I LOVED SMOKING! But tbh the harsh reality is if its not a quick death, you won't care much about hrt anyway, you'll just be happy to get a jello cup once in awhile. But as much as I loved smoking, I like not being out of breath after going to the bathroom better. My ex's sister just died a slow miserable 3 year long death from COPD from smoking, also. She never gave up either, she would sit on the porch with her oxygen mask and a pack of Marlboro's, it actually was a pretty gruesome drawn out death. Then there is sticking your choices on someone else, if that happens to you who's going to take care of you? I've had to give up the last 16 years of my life for my mother, and all the complications from that made me more suicidal then being trans ever did. I just couldn't do that to anyone my self, I've told my son if i get like her to leave me in a room with a loaded gun and go see a movie. Seriously give vaping a try, you might find you like it even better then smoking, and it wont kill you.