[Jellyfish]

I realize that with early maraine/marauder pushes (around 5/6 minutes) that if I can get some sentries and such out I should be able to fend this off, and I usually am, the problem being, that doing so usually leaves my build or whever it is i'm trying to do crippled, thus resulting in me being killed by a mass ball of marine marauder medivac, By then I should have some colossus out, but if I do it's usually maybe one or two, and generally without thermal lance. I've also tried to expand after this but when the time comes when they want to expand so they push out at the same time, my army is lacking a little from expanding and it leaves me losing. Playing as protoss, I find terran is definitely my worst match up. So I was wondering if someone who is a much better player then me (Only bronze =p) Could give me some tips to help with my pvt. Whether it be some sort of high templar build or just a better way to fend it off, Any help would be much appreciated ^^.