The most effective way to use jedah efficiency is by playing more offensively than defensively, I noticed a pattern which most of bad to medium jedah players follow, they usually play more defensively while spamming Dio sega, also they rarely throw or make use of jedah's dash combo attack instead of jumping combo attacks which is his strongest setup. Pro jedah players calculate everything starting from the dashing space required to land a deep combo to well placed Dio sega, they also exploit their meters for intensive dark energy attacks. I know Jedah isn't an easy character, he's unique and quite hard to master but the end results are worth it. Jedah can be quite unpredictable in the hands of great players of the weight of Dyne and Hoe. Keep it up!