weight loss

I always been conscious on my weight. It seems like it easily go up and very difficult to lose. Unlike before i got pregnant my weight usually stays at 110 lbs but now i am 130lbs. I am really looking forward to reach at least 115lbs however, i am struggling with it. I have been through taking different weight loss pills but it didn't work. I always ended up gaining weight because i tend to eat a lot knowing that i took the best weight loss pills in the market. I seriously need help.