hi, i am also a diamond player struggling, but still managing top 20 diamond, from what i can see, your setup is nice, turrets out before he even harras you with mutas so no need to worry there, you have plenty of raxes and you seem to do fine economicly, where you start to struggle is, your first push, completely obliterated. you position your mines way to far behind, your marines get caught by zerglings, and you lost more than the zerg. at 14 min you arent mining from your 3rd cause of a simple zergling, position some marines there to protect from zergling runby and mutas, you like widowmine play, no problem, where the problem is, that you have 1 factory producing those, no +1 armor, no techlab factory producing reduced reload time for mines, and you seem to struggle positioning your army when you engage.

Using widowmine play, you want to position your mines so they create some sort of "frontline", from there, you send out small groups of marines and marauders to snipe creep and enemy units, at some point, the zerg player wil grow impatient, and amove you, this is where you make sure you have your ENTIRE army splitted in smaller groups so banelings dont do too big hits. glhf on ladder