can i trade this leg in for a new one?

as jesse said, its about post time, so I’ll get to that… things are going ok right now. My biggest focus (other than school) right now is my leg… things are not great in that department… and it seems like it just continues to drag the rest of my life down, its just… its just a “thorn in the flesh” for sure. I wish I could just get over it, or just be ok with it or not notice it. I hate to whine about it all the time… but its just a never ending source of pain that just seems to suck the life out of me- the best way I can describe it… and you know, honestly, if I was 65 and I felt like this, I’d probably say “well Scott… you’ve lived a full life up to this point.. and your body is just really worn out and its telling you to just take it easy… time to relax and enjoy retirement, don’t worry about the leg”… but you know… its not time for me to be like that just yet… I’ve got a few years… I just… I really really don’t like being so overweight… my BMI is about 31 which puts me above the “overweight” category and into the obese category… and you know… you can really tell a difference…they make those limits for a reason… I just remember being so frustrated about 14 months ago one weekend when I couldn’t run and I told Mandy in a very frustrated way (this is back when I was all healthy and stuff) “you just don’t understand… I cant go back to how I was! I have to do everything I can to keep from being the guy I was before 10^th grade. Its just an unbearable thought for me… “ something like that…. And it IS… I feel like I’m literally wearing a fat-suit. I feel like I’m carrying so much weight, and when I do go down to the track I’m just so so slow and my legs feel so weak… like I mean… with this thing I’ve got… I honestly coulnt even run away from a scary dog or something. My body cant physically move that fast anymore… I cant jump… I cant jump in the air more than a foot or so… my legs just don’t have the strength… and when I come down it feels like there are two of me landing and I feel it in my knees… and I just feel like my life is on pause… like I’m just going to keep waiting to play the social game… and I’ll just sit here in my room until I get better and then I’ll go out and try to meet someone…. To me right now… its not a matter of when I get better… it’s a matter of IF… I don’t know what to believe anymore really… I always said “yeah, you’ll get better… duh! Doctors will always be able to fix you!”… but I absolutely don’t believe that anymore. I’m just a big experiment. Oh well… its cool… I don’t like to complain like this, but sometimes you don’t want to put that burdon on the same friends you see day in and day out and have heard 100 times that I’m frustrated with my leg over the last 2 semesters… its officially been 1 calendar year since things were bad… since I was able to sleep through the night. Seriously, and I’m talking to everyone here… if you are able to go to bed and wake up in the morning without being interrupted by pain and drugs in the night… just take 5 seconds and be glad for that… its really kind of a big deal, that “underappreciated” wouldn't even begin to describe how I feel.