Also, you have a right to be bitter about life, your job, going into medicine, whatever, but don't deny that you were idealistic as a premed too.
Of course almost all doctors were idealistic as pre-meds. Otherwise they wouldn't have gone to med school.
But idealism doesn't have to be synonymous with naivete or ignorance.
The point is there are different stages of life, and until we premeds have gotten to the stage where we are "supposed" to start feeling all bitter, there is no point feeling that way now when we have not experienced anything to make us feel that way!
Of course you're not disgruntled and bitter now.
But that's precisely why people who have actually been there are giving you the reasons why you might be unhappy in the future.
Look at the surveys of physicians. Almost half wouldn't go into medicine again. Of course, the other half would. Which half will you be in? Everyone thinks that they will be the winner. That's why people buy lottery tickets.
I was warned by a med student before I applied, and I was warned by two friends who were in medical school when I interviewed at their schools. I didn't listen to them, but I'm very grateful to all of them for warning me. At least I know that I had all the information, and it was my own decision to ignore it. I'm passing along the favor by warning you.
I'm not sure that I wouldn't do it again, but I would think long and hard about the alternatives first.
Instead of telling people that they are wrong when they give you advice you don't want to hear, I try to figure out why they're saying what they're saying, and maybe try to learn something. It's better to learn from other people's mistakes than to learn from your own.