Rogues are sneaky hit and run fighters. Come in, shank in the kidney, disengage and move out. Or better yet, sneak it from the distance. Use goblin tactics. Short bow, stay at 80ft, shoot for sneak attack, bonus action- hide. In melee, your lv1 rogue hits for 1d8+1d6+4 ( rapier, sneak, 18 dex)...