Your deck has some sweet cards in it. One of the reasons why it probably isn't performing as well as you would like is because it is unfocused. I bet sometimes you have a great aggressive start but don’t quite finish off your opponent before they take over the game and all their powerful and expensive cards. The way to overcome this is to focus your deck. You are also a new player so I’m thinking you don’t want to spend a lot of money copying some deck off the internet. Hopefully a few suggestions can make yours a little better. This whole makeover should cost under $10. There are better ways of making a deck like this but I’m really hoping that this is the most help for the least money. Have fun!

Creatures (28) More monsters … specifically more cheap aggressive warriors! CUT 2x Timely Hordemate – Too slow 4x Tormented hero – YES! Great idea, get one more
4x Chief of the Edge – Good pick! Buffs your guys 4x Boodsoaked Champion – Looks great getting 2 more will be the most expensive item on the list by far -- about $4 for the 2 more you need but get then now cause they could go up in price, these guys are powerful 4 x Seeker of the Way – Make sure to attack with mana open so you can trigger prowess or at least bluff that you are CUT 3x mardu hateblade - Cut them, they don’t do enough damage 1 Wingmate Roc – This guy can help you race and it’s fun to slam an unexpected one-of CUT 2x siege rhino – This is probably the hardest cut for you cause these guys are so sweet but they belong in a different deck with expensive lands and support that your little warriors can’t give. 4x [[Gnarled Scarhide]] – Should be around 50 cents. This guy is flexible because you can play him on turn 1 or on turn 4 4x [[Mardu Shadowspear]] – New Set! 25 cents presale. Costs one mana, is a warrior, and attacks for 2 damage … seems like exactly what we want 2x [[Merciless Executioner]] – New Set! 25 cents presale. This guy is a warrior that impacts the board and can turn one of your outclassed one drops into a removal spell (for all the value Sacrifice a Bloodsoaked Champion and “raid” him back to the battlefield) 1x [[Mogis’s Marauder]] – Get your warriors in for the win plus only 25 cents Planeswalkers (1)
1x Sorin – Nice! This planeswalker will now be an all-star. Spells (8-10) Try tweaking these spells to fit what you like 0-4 x [[Valorous Stance]] – They are kinda expensive presale (cause they are so good!) don’t waste your money on them at $1 they will be half that soon so keep an eye out for them. CUT 2x Solemn Offering – if you want it to kill enchantments put [[Erase]] in the sideboard 2x Banishing Light – You can cut this soon for those valorous stances later 4x Defiant Strike – Another easily replaced spell but keep for now CUT 3x abzan charm – Cutting green … sorry 1-2x [[Murderous Cut]] - 50 cent kill spell 2x Feat of Resistance – look to replace it down the line but keep it for now CUT 1x spear of heliod – Double white will make it hard to cast and it takes time away from playing more warriors. 1x [[Rush of Battle]] – Not a good card in constructed but you could have a lot of fun with it plus your probably have one lying around Lands (21-23) 1x Caves of Koilos – More of these will help a lot 4x Scoured Barrens – You don’t really want these because you want to play creatures every single turn … but you might have to play them for now. 12x Swamp – This mana isn’t great so tinker and test a little 6x Plains