Don't feel bad for being stuck on Titan EX, I was too, for almost as long. I didn't beat Titan EX until I beat T7 with my very first static. They mocked my lack of being able to beat it, and we celebrated our win by going for an "easy" clear. 80 minutes later, after someone jinxed us by wondering how much DPS we'd have at 25% echo.... we beat him!

Check for open statics at various times of the week. I've seen several looking for a healer. If you're bored and want new progression, try a melee DPS, completely different from Summoner. You might enjoy leveling someone thing so different from what you play now.