Some experiences for you to play dota better.

• Your mood is more important than you probably realize. Have you ever noticed that, regardless of what you're doing, your performance tends to suffer if you're upset or under a lot of stress? Games are no different. If gaming tends to pick up your mood, odds are simply playing will improve your performance. If you are the type who gets frustrated easily, though, one or two mistakes can easily put you in a tailspin that makes you play even worse. If music tends to relax you, turn on some music while you're playing. If you need your surroundings to be quiet, make it happen. You'd probably be surprised to see how much better you will play simply by approaching the game with the proper mindset.

• Try to make a well-rounded hero pick. If your team already has three Agility heroes, don't pick another one. If your team has all melee heroes because collectively you have a learning disability, pick a ranged hero. Even if your team is picking a squad of all gankers or pushers doesn't mean you can't still be flexible. If your team wants to gank and has already picked Spirtbreaker, Jakiro and Lina, you can easily fit in with a hero like Bloodseeker or Bounty Hunter. If your team has a hole, such as no way to initiate a teamfight, pick a hero who fills it. If you're still unsure, ask a teammate. Oddly enough, asking a teammate what hero you should pick is one of the few questions a new player can ask that rarely causes people to get angry.

• If you don't know a hero at all, don't pick that hero. The more comfortable you are with a hero, the better. Obviously, you need to play a hero at "game speed" against players at some point, but if you're never played with - or against - Slark or Ember Spirit, a game against players is not the time to break one in...at least not if you're expecting decent results. If you're awesome with Pudge, pick Pudge. Otherwise, pick a better time to practice

• If all else fails, pick a hero with stuns. Perhaps your teammates are no help. Perhaps you're uncomfortable with the hero they recommend. Whatever the case, even experienced players may be unsure of what hero to pick from time to time. Regardless of skill level, stuns are about as close to a Universally Good Thing as DotA gets. Especially for new players, it's a great way to ensure your hero is always useful. Assuming you skilled your disables first, a Level 9 Rhasta has the same disabling power as a Level 25 Rhasta. True, your damage output will suck. True, you won't have much survivability. That having been said, new players will generally die a lot and fall behind in both levels and farm. For a carry, this is back breaking. For someone with a stun, though, it's an inconvenience. Even heroes with huge amounts of farm will succumb when subjected to long periods of being helpless.

Sources: www.playdota.com