i am a hard gainer only thing that works is juice but looking into other things is dhea good and if so where to get best quility and how much mg ?and dont say eat good and lots of protien tryed it all i used to do 350 grams of protien and 300 carbs a day nothing works except juice please help out
Your carbs were likely too low. Assuming your fat content is fairly low, you couldn't have been consuming more than 3,000 calories per day.
If you're the "hard gainer" you claim to be, it's going to take WAAAAAAAAAAY more than 3,000 calories to get bigger.
Try bumping it up to 4,000 for a few weeks, particularly by increasing your carb intake. If that doesn't work, proceed to 4,500. To claim that "nothing works but juice" when your caloric intake is that low (at least, low for you) makes no sense.