Guild Wars 2

Squishy class is squishy, it all ends up with you needing to memorize key mechanics/abilities and their animations.

L2P is the best option. Otherwise you can take a couple of soldier or valkyrie gear to give you a safety net until you know how to fight with your thief. You can also take a more defensive trait line. Like taking Acrobatic (for more dodge) or Shadow Arts (for regen and condi removal on stealth).

Probably “l2p”, however. IF you do decide to get more Defensive equipment, go for Valkyrie.
Toughness really goes to waste on Thief as you won’t get it high enough to make an actual impact, so Soldiers wouldn’t be a good choice.

mix valk and bers