Thanks to social media, Facebook in particular, and sometimes Instagram, I have gotten laid. Thanks to social media I have gotten laid more than I otherwise would have, or probably should have.
I have not had the same experience with cigarettes and junk food.
Thanks to social media I got more and more depressed and anxious in my youth. My natural shame evolved into fantastic pathological shame. Took me only 10 years to fight against it and kinda feel normal again. Thank you social media
Edit: social media wasn't the cause, but a lot of fuel
Not saying it is your situation, but we often rationalize addictions and justify having them - often with some sort of utility. When I was a young smoker, I told myself smoking allows me to get laid as I would talk up to women in bars and clubs in the (calmer) smoking areas and it was easier to hit on them and get their numbers. While true, the negative impact of smoking in general does not outweigh that. And if I wouldn't have smoked, I could have just as well hit on women on the streets or in the noisy club. Just as you can get laid without social media.
I have not had the same experience with cigarettes and junk food.