I'm losing too much. Help!

Here is my dotabuff: http://www.dotabuff.com/players/114789672/matches
Am i that bad at this game? That bad so that i lose that much?
What im a doing wrong?

To be fair, you have a winrate >50%, which in my opinion is not bad. Your item builds all look fine. I'd say maybe you are just getting repeatedly unlucky on the matchmaking algorithm, pitting you against better opponents. Perhaps it's just a lack of coordination on your team. It could be any reason, really.

You are playing on EU West, so am I. I can help you a little bit. I am using a mic, so it might be helpful for you. You can add me on Steam as well. Cheers.

This is my DotaBUFF: http://www.dotabuff.com/players/113928409

You are playing a lot of all random, which often results in ****ty drafts, play all pick and it will be at least a bit better.

Your can add me too if you want. I play EU west.

http://steamcommunity.com/profiles/76561198063345537

http://www.dotabuff.com/matches/1195326608

We just played this game. We did a classic Crystal Maiden + Sven safe lane.

Picking Chen against world's biggest dps (plus psi blades and split shot), picking Rubick against world's biggest disablers, Sniper against Pudge, Razor against spell-based heroes. I think you really need to realize that many games are won or lost in the picking stage. Granted, if your team forces you to pick first, this isn't your fault, but that can't be the case in every game you've lost. I would suggest reading some material on hero strengths and weaknesses, friends and foes, and the like.