First of all, take a deep breath and calm down. It's difficult to have any inkling about what specialty is right for you until the third year, and even then you might change your mind at the eleventh hour. It's just a reflection of the curriculum structure - your concept of surgery now may drastically change once you rotate through it.
That said, involve yourself in research now based on WHAT YOU FIND INTERESTING. Some applicants to general surgery residency don't have any research background at all, and plenty of those with research experience studied in a non-surgical field. The important thing is that you're excited, involved, and that you can talk about your project when residency interviews roll around (whatever that residency may be).
If you decide down the road that you want to apply to an uber-competitive subspecialty like Ortho or Optho, then you can take a year off between third & fourth years to conduct research in that particular field. Your research now is certainly not going to make or break you, it's far too early in the game.
Bottom line: the first two years are all about learning the basics, and with the exception of the boards, residency committees place much greater weight on your performance in the clinical years. So just focus on learning the material, hang in there, EXPLORE your interests & passions, & hold off on the worry until third year.
Good luck.
