Change Diet...& What Should I Do?

hmmm....remember last time i was on diet using Totalife? I still have some of the food set at home....Was thinking to continue it. As at to-date i only lost 4kg from using it...Then, that's it...Frust...!!!!
Last month, my sister introduced this JusMate5...She said all her frens who;s having obesity problem are using JM5 for their diet. Seems it works a lot!. So, she also start using it. Dunno whether she is still using it now. Havent got the chance to talk to her about it. Now, i & Ude become a tag-team...heheheheh....we want to try it! The supply going to arrive on coming Monday. Seems a long way to go....aaarrrgghhh! I think i am too depressed to even think about my weight problem. When can it ends? My target is only 30 pounds...that's it...I'm not like those in Biggest Loser reality show that needs to shred off about 100pounds....Why is it soooo hard? Is it because of my liver condition? For those who dont know, my body is suffering Hepatitis C since i was 19 (the time that i knew about it...actually dunno when it started...) Uhuk! So, what's the best thing that i have to do? Full medical check-up? Or i can diet as other normal people? Or is this disease prevents me from loosing some pounds from my body...? I've been wondering about this since last year....what should i do...???