First take a deep breath. I imagine you must be feeling a wide range of emotions, from anger to disappointment to envy. I'd like to take a second to remind you why your efforts were not in vain:

1. Enjoy your new units. Of all the units you pulled, certainly some were units you hadn't pulled before. It's always fun obtaining new units and theory-crafting whether or not they'd make a good fit onto an arena team, or an expedition team, or maybe just a raid-farming team. And, if nothing else, having more units is just cool from a collector's perspective.

2. Plan some TM's to farm. Certainly some units you pulled have valuable TM's that can be farmed, or queued up for farming if you are already a dedicated TM farmer. Thinking about your core team getting stronger with those new TM's is always an exciting prospect. For example, I happened to pull a Grace who, while nothing special from a unit perspective, has a nice TM for my mage squad. I am sure many pulled 21O and perhaps Eve. These are also units who are pretty average but have TM's that will almost certainly provide some improvement to their teams.

3. Enjoy the challenge. This game can get quite dull if you have all the best units and are breezing through new content and making a joke out of raid bosses. It is much more rewarding to have a close fight where your available lineup dictates the optimal strategy for success. For example, those with Marie will simply negate strategies for some fights (Dark Siren/Ifrit) but those with Minfilia will need to plan around optimal elemental buffs and turn orders. The more planning, the more fun in my opinion.

4. Be happy for others. No matter how upset you are, think about how happy you would have been to pull what you were hoping to, whether that was 9S or 2B or A2. Then realize that there are thousands of people who are this happy right now. Rather than being jealous of their luck, try to be happy for them. After all, one day it could be you that is lucky and I'm sure you'd want them to be happy for you as well. And, if that proves too difficult, add them as friends so that you too can benefit from their pulls.

5. Focus on other things. Now that you aren't thinking about what units you could pull, you can focus more on some definite goals. There are always megacrysts to farm, units to level, and trophies to earn. Perhaps you want to get top 3k in arena this week or farm the raid for one of the high rank rewards. Maybe you still have some story missions to complete. Let yourself commit to something more tangible and you'll quickly realize that your goals are attainable without any luck required.

6. Learn from your mistakes. If you are someone who sometimes goes too far with pulling for units, take this as a learning opportunity. It could be to never chase a 5*, even on banner, or it could be to never expect to pull anything in a Gacha game, regardless of your commitment to it. Mistakes are just opportunities for growth after all, and if you take advantage of them, you'll end up succeeding no matter what the outcome.

7. And lastly, have fun. I'm sure, regardless of how things turned out, pulling for new units was an exciting experience. Every gold and/or rainbow crystal must have made you hold your breath in anticipation of what unit would come out. I personally had saved up many tickets for this banner and had fun finally spending them. Just remember, this is a game, not a casino. If your enjoyment of the game stems mainly from pulling new units, you might want to reconsider playing it. For everyone else who enjoys the game for what it is, know that ultimately nothing has changed. You'll have more opportunities in the future to pull the units you want. There will be tickets given out during the raid and a week or two more of daily pulls if you want to keep trying on this banner. And if not, that's okay. Just have fun!