hi , i main guardian and decided to play with mesmer and been doing so for about 2-3 weeks.
obviously im playing meta chrono condi shatter.
my main weapons are scepter/shied and staff.
overall im playing this game for about half a year with 2 seasons of pvp under my belt (as DH) so i know the game and classes.
as mesmer pvp is really fun unless im facing a thief and here is what i need help with.
1st off , im currently not using moa since i feel its still a bit complicated for me (need to stun before using) and gravity well (with continium split) feels easier to pull off.
2nd im still not great at kiting especialy with escaping steal from thief or teleporting backwards to teleport spots.
so now for my questions
1. i have been thinking about changing from scepter to sword , solely because it might help survive better but i would love to know what mesmers with more experience than me think about it.
is sword better for survival than scepter? especially against a thief.
2. thief steal+damage obviously does ton of damage and gives him an early advantage (+when they steal from mesmer they get ton of boons)
so right from the start mesmer is at 40-30% of his initial HP .
so my question is , what does a decent mesmer intuition tells him to do now?
how do you regain hp while attacking the thief at same time?
i try to play it calmly myself using my defence skills while wait for 3 shatters and then shatter and put healing skill on the ground , but sadly most of the time i lose my life before i do enough damage or heal myself…is there some kind of preperation a mesmer does when he knows he might get attacked/stolen soon by thief?
3. i havent encountred staff thiefs as mesmer yet ( atleast not 1 v 1) meta says they are mesmer biggest counter since they can cleanse conditions easy , what is the basic strategy against them?
any tips would help , so thanks in advance 
p.s as dh im used to be able to destroy most thiefs easy , as mesmer i feel like i could die any second if thief fully commits (which they usually do) so this is a strange sensation for me…wonder if all decent mesmer felt this at start.