I'm like you! I have to go up a size to get the right fit once the rise is more than 10 inches or so. I also have to get the proportions just right and find the following helps:
• go with higher-necked tops and always tuck them in---a half-tuck if the top is cropped or blousy sometimes works better than a full tuck
• belts help define the waist visually (and also help with fit since I size up, as noted above)
• high waists and cropped bottoms are harder to pull off for me, so I tend to look for longer pants with wider legs that I can wear with a heel