Goggle Woes

Hello All, I'm new to this board. Actually, just new to posting. I've been entertained by your comments for quite a while now. I've been swimming for a few years (I'm 29), and I absolutely love it. Unfortunately, I really struggle with speed. I really relate to all the posts regarding being 'slow'. But I keep trying the suggestions I get from you all. So thank you. Anyhow, my question. I have such a hard time with goggles. Either they're too tight and give me a headache. Or they're too loose and water trickles in. Agghh!!! I've tried different brands, different styles.... I'm just wondering if there is some trick to getting the perfect seal. Any feedback would be greatly appreciated. Kadster