Guild Wars 2

I just got this game not too long ago and decided to roll a mesmer, and the game tells me that i get to chose my trait points at level 11. Can i reset these if i ever choose to? And what are good trait points to go into for mostly pve/dungeons.

I understand it all depends on my gametype and the traits are very different if i say went to pvp or WvW.

You can reset your traits any time you want for a very small fee. At lvl 80 its like 3.5s if i remember right wich you can get selling like 2 random drops.

As for builds theres plenty, i suggest you to look at Osicat, Lazy Kay, Seven Mirrors (shatter builds, some full shatter, some not) and look for Phantasm Builds. Both Shatter builds and Phantasm builds work good in dungeons. Shatter builds rely in getting clones out fast to shatter then for big spikes of dmg, phantasm rely in keeping phantasm out for big dmg also both can hit quite hard.

There are some support builds like Chaos Maestro wich tbh i never tried myself.

Keep in mind mesmers are quite hard to play untill lvl 40, after that they just get better and better and better

You will be able to change them. :-)
Just go to your wvw area and speak to the trainer (or look for any other mesmer trainer) and he/ she will ask you to pay a little fee to unlearn the old ones and give you the trait points back that you already have. Now you can spend them again.

For me (I play pve only!) it is really nice to have clone on dodge (deceptive evasion). It is 20 points in the Dueling trait.
As I play with illusions I also try to make them stronger. There are several traits to achieve that. (e.g. faster illusion/ phantasm skill recharge)

Try it out what’s the best for you. It is not too expensive to play with the traits. :-)

Have fun!