Your food is pre-heavensward, better to go Baked Pipira Pira. While on the topic of food, remember that you can use food to bridge acc gap. Urchin Loaf gives up to 40 acc.
If you want to compare yourself with other dragoons use www.fflogs.com. On this site you can see what the avg dps is for you class per turn. #s can be inflated by comp & gear, but it gives a baseline.
Your biggest gear upgrade is your weapon, always upgrade first. 1WD=12 str=53 crit. Upgrade weapon then find way to make accuracy cap.
For every fight: "Uptime is the highest dps" The more you're on the boss the higher the dps. Always keep HT up, DoTs ticking, and BotD up, and you will be fine. The smallest part of your dps (but what also separates the good from the great) is OGCD management... that comes later