Dear Jamie            I just got my update from this site that it's my 5th anniversary since my gastric bypass...     What to tell you,,,,   good news, I have lost  between 60-70 lbs, had gotten it down to almost 100 lbs and then my husband started bringing in sweets, man alive,, it didn't take long for the fat cells to embrace that!   I excercise every week, I really, really want you to embrace that decision.  Make it a 'have to' just like the protein requirements, the water etc.  
     I could read the butterflies in your stomach feeling.  Breath, two three.  my bad news is that I have had migranes after the surgery that I've never suffered before.  I was also dealing with a dying mother so I'm not sure just what it maintaining the daily pain in my head.  I've gotten over the stress of my Mom.  So I've had  several years of working with a neurosurgeon and have just started working w/ a Pain Specialist.  My husband always wonders if my pain is associated with the surgery.  I've wandered the cyberspace occasionally looking for any ties and did see someone posted a note asking if anyone also had migranes start.
     You will be looking a life putting proteins fist, that's different, always multivitamins, calcium, B-12.  Gotta have it.  So that is a big change in my life.  No drinking soda, alcohol ( or very limited )
you may look at a milkshake but know that your body will 'dump' on you w/too many carbs and you will have PAIN.  It doesn't take to many spells of  that to teach you to watch how many carbs you are comsuming.  I'm speaking frankly not the RAH! RAH! I read of others.  Maybe that makes me different, wondering if I should of gone to the band option instead of a whole new insides.  But my insurance covered one over the other so I made that decision.  
     Would I do it again?  Probably yes, it's changed me forever.  I know to pass the milkshakes ( you can tolerate about 18grams of carbs at one time)  so there are some sips but not the whole thing, remember PAIN! 
     I guess that's what I wanted to tell you, you will make some big changes, help yourself out and embrace the strength training and cardio.  Find a friendly gym, videos, a friend to help you push along.  You will do fine, you will think postive, remember to breath  take care   Deb