<human>: I'm a 9-1-1 dispatcher and I work 4 10 hours shifts a week. I spend almost the entire time sitting down, and when I get off work (at 8 am) I pretty much pass out for the rest of the day until about 1-2 hours before I have to go back to work. I try to eat salads every night, and I resist all the candy that my coworkers bring in, and I also lost a majority of my weight because I completely stopped eating fast food (my motto is, if it has a drive thru, I'm not driving through. Totally cheesy, I know).

But now I'm stuck, and haven't lost much weight since. I still have about 60lbs to go. I'm a 24/F, 5'3" (160 cm) and I'm about 200 lbs (90 kg).

I know I have to exercise more, and I try to stretch and move around during slow times. My knees are also not in the best shape, and my GP told me to go swimming to strengthen my legs so I can get into a running routine. 

But I'm just so tired all the time! I'm trying to get off the night shift, but until then does anyone have any suggestions?

Give me the gist of the text in a nutshell
<bot>: 9-1-1 dispatcher, sitting down for entire 10 hour graveyard shifts, need suggestions for losing weight while being tired all the time.