[oo0zula0oo]

Hey guys,
Since I've played Sc2 I've really enjoyed it. But not its starting to get quite frustrating... I am currently in Diamond league. I know it isn't a very high league and that's why I am asking for help.

My worst match up at the moment is my TvZ. I can win games where people do hellion marine timing pushes but I cant seem to beat the marine tank... I know everyone says that its easy for Zerg to hold off a marine tank build by Terran but I'm always losing to it in the late game...

Sometimes I lose to their timing attack but other times it just comes down to them owning me with tank n marines and some thors...

When I watch my most recent replay, I can see that I don't drone enough and also my macro is very off.. floating a lot of minerals... I think this is due to me not knowing when I can expand and when I can drone up.. Its hard to judge when a terran will move out because they can either stay back for a very long time or they can move out with a timing push and constant pressure but its really upto them how they dictate the course of the game and I'm stuck guessing...

When i get to tier 3 he backs away and defends until he has enough vikings to kill off my BL.. I didn't get infestors which was another mistake on my part but i was always scared of an impeding attack that I completely skipped them... And I can also see later on in the replay that i should have been much more agressive with my mutas.. but during the game its very difficult to see whether I can or not...

Please have a look at this replay and let me know how i can improve and also if any terrans out there willing to give some time to help me practice this match up I would greatly appreciate it~

Its coming to a point where more than 75% of my games vs terran I lose... haha T_T

Thanks for your time~

I'm not sure of how to put the replay in my post so I just got the link.. Sorry if this was the wrong way of doing it~
This is the link to the replay.
http://www.sc2sea.com/downloads.php?do=file&id=485

Zula