I tell med students who are deciding this. People decide on what they like which I think can be very wrong such as wanting to go into surgery doing Whipples, bowel resections, etcs all day.
1. Decide what you DO NOT like and can not stand. For me, I could not stand boring clinics and being on call. That cuts it down alot
2. Find out what the doc does 90% of the time and you have to either be able to bear it or like it. You can't hate it.
3. What you find fun/exciting now will not excite you after doing it 100 times. This goes for EM too. People think its exciting running codes, putting in lines, intubating, putting in chest tubes, cracking chests. Guess what, that is about 1% of your job. You better like the other 99% that is not exciting or procedural. If I do not have to put another Chest tube, central line, pelvic exam, reduce joints/fractures, LPs, sutures I would be a happier man. The finest steak takes like rubber after the 3 straight meal.
No different than any seasoned surgeons disliking the appy from the ED. They really hate it at 1am they just fell to sleep from a long day, operate for 2 hrs, and then get back to either the full day of clinic at 8am or surgery at 8am until 5pm.
If you can bear this or even like it after doing it for 5 years, then surgery is for you.
I love not having clinic, not having call, taking days off when I want. Admin stuff, drug seekers, drunks, bland medicine, etc doesn't bother me. I love EM