I remmber when I first bought starcraft i was a 20 losing streak? You play as terran right? Something i found very helpful against zerg is to build a planetary fortrss immeadately! The fortress will easily get rid of a said amount of zerglings.
What I usually go for-
3 barracks (2 reactor and 1 tech lab)-go for about 4 marauders and however much marines you can have with the supply depot
about 4 supply depots
also make sure you buy stimpack
all of this takes about 6:30 starcraft time. You should enable the clock in the menus to see how long it takes you to build stuff.
Good luck!







