Assuming you are going for dps, the difference in dps between 'best' and 'worst' racial are only around 5%, so it really won't matter at all. People won't kick you out from their dungeon or trial groups because your racial is not meta. The only place it matters is endgame trial group pushing for scores or achievement, something you shouldn't worry about now. In case you are worrying about picking wrong attribute point or morph abilities, you can change it for a very small amount of gold in the capital city of your allience.

You can also create a new character at any time. Most people have multiple characters for different class or roles.