A good recepy: take a bottle of sports drink of whatever, and pour out half of it. Then fill up the bottle with wodka.
When you get tight. try to loosen up. When that doesn't work and you keep having a short arm, then take up the bottle and swallow some. All of a sudden you can let it flow again and you FH will be rejuvinated. Don't be surprised when you hit severals winners in a row.
Warning: if it works well, you might be tempted to take too much. You'll notice when you see several balls coming at you at the same time and don't know which one to hit.