Just keep on practicing until you kick it's butt!

Try moving the shape a few frets higher up the neck - you won't need as much pressure on the top 2 strings to get the strings sounding right. Once you get it, start shifting back down. Cheating is OK, but I think you should at least aim for doing it 'right' before you decide to do it 'wrong'...

You'll need that strength in your hand eventually.....