Once you’re past beginner level and rallying comfortably, “get better” stops being one goal and becomes several smaller, specific ones. The players who improve fastest from here aren’t necessarily the ones who play most often, they’re the ones who work on the right specific thing at the right time.
Consistency before power
It’s tempting to chase a bigger serve or a harder forehand once you can already hit the ball reasonably well. Almost always, the higher-leverage work is still consistency, getting the same shot to land in the same general area repeatedly under slight pressure. Power without control just moves your errors further, it doesn’t reduce them.
The shot that breaks down under pressure
Every intermediate player has one stroke that’s fine in a relaxed rally and falls apart the moment the point actually matters, often the second serve or a backhand under time pressure. Identifying that specific shot, rather than vaguely “working on my game,” is usually the single most useful thing a coach can help pinpoint, because it’s rarely the shot the player assumes it is.
Footwork is still underrated at this level
Most technical breakdowns at intermediate level trace back to being slightly out of position, not to poor arm mechanics. Footwork drills feel unglamorous compared to stroke work, but they fix more match-play errors than another hour of hitting the same groundstroke off a fed ball.
Doubles positioning, if you play doubles at all
A lot of recreational tennis in Singapore is doubles, and a lot of intermediate players have never had formal doubles positioning coached, only picked it up by trial and error. Understanding where to stand relative to your partner and the ball changes doubles results more than almost any stroke improvement.
Breaking an actual plateau
If you’ve been playing at roughly the same level for months despite regular practice, the fix is rarely “practice more of the same.” It’s usually a specific technical or tactical adjustment that a second pair of eyes can see faster than you can feel it yourself.
Private coaching is built for exactly this kind of targeted work, session by session, rather than a fixed group curriculum. See private lessons if you’re working on something specific in your own game.