If you are already in your 3rd or 4th year don't bother switching out, it will just be a waste of time and money.
Also you say mechanical engineering isn't really hands on, well I'm not sure how many years you've been in college but if you just started it could be just your core classes, you won't get deep into anything the first year of college.
Also I don't think IT is what you are looking for, that really isn't taking apart things and building stuff either (at least that is what i think, correct me if I'm wrong). You might be looking more into Computer Engineering or Electrical Engineering, probably Electrical Engineering that's more focused on creating electrical circuits and stuff like that. Computer Engineering is more chip design and they also create software and firmware for chips so you need to like programing.