Loving it but impatient

Hello all, my name is Jeremy and I have been huge all my live but never bothered me. In 2011 I was doing great I was down to 450, working out by lifting weight and walking a mile every day but had a few issues with back due to an car accident when I was younger, the weight never bothered me due to me being able to do everything for myself. Then I was sent to a chiropractor and he made my back worse, I had to start using a cane, I gained all my weight back and more, took me up to 575lbs. Then I got frustrated and said let me try the surgery so I had my surgery on Friday Jan 24, 2014, I was scared to death when I went in but was quick and out of there that Sunday and in pain but was from knock out gas lol. The liquid diet was fine and I was sad when I went shopping and family and friends was buying real food, but I was lucky that my girl was on a diet with me and she ate at work and just had shakes at home. Since I been home I have been doing great with the liquid diet but hard to drink but got better. I saw my Dr a week after surgery February 3,2014 and was down to 508 and was very happy. I was told to do light stuff and to let my body recover so I did light stuff and I feel great so started doing more and more like, walking more, walking dogs, using bands, and my energy is coming back slowly, so I wanted to weigh myself again but I need to use scales in hospital so I went in on February 12,2014 and was down to 498 and was not that happy but I should be. Now my energy is back hard core and feel great. I get 90g of protein in a day, 60oz of water a day and feel great. I play biggest loser on my xbox 360 Kinect, for 20min a day, cleaning like crazy, using 20lb dumbbells and doing all kinds of lifting with them for my back and arms but I want to do my bench pressing and weight lifting and want to start swimming and want to so much more stuff but I am not cause my next appointment is February 24,2014. I fell so good I want to so much more, I am not using my cane for a week now, I am sticking to my 1200 calorie diet, and I have so much energy and cant release it but through the game. I am hoping the doc says I can start doing those things and I am hoping to start looking for a job as soon as I have no pain in my back. My goal is 300lbs but docs say that I might go lower but I really don't want to cause I want to be a lot of muscle but if I do I do. I am shooting to be 300 by end of year.