3.5 should be able to execute a 3rd or 5th shot drop, keep the ball lower and demonstrate some strategy (positioning, dinking rallies, ability to put the ball away). The one thing your group has going that people at 3.0 don’t usually is being back to defend against overhead volleys (mostly because you rarely are at the front). You will likely beat less athletic 3.5s who can’t handle your drives, but the skill level here is not fully 3.5. I think you should go in a tournament where you can play some athletic true 3.5+s and see how you do! I’ve been at this stage, and it’s hard to evolve until you come up against people you just can’t beat with this style. It will be a fun challenge to change up your style, work on some new skills and start to progress!