Judging by your gear you stopped playing somewhere in patch 2.2. If you had all your main story quests done up to that point you are only 62 main story quests from finished 2.0 storyline. As others have mentioned you will get relevant gear from the main story quests now. Starting over is quite the slog through quests you've already done (222 quests to get back to same point, not counting side quests)