First of all, don't be too hard on yourself. The plateau is part of the game. Here are 3 things that helped me break through:
1.Analyze your mistakes: Don’t just get frustrated, identify why you lost the point. For a while, I realized I was losing most points because of poor positioning. I was stuck in the 'No Man’s Land' way too often. Once I fixed my positioning, my game changed
2.Hard balls easy, easy balls hard: This is a golden rule.
* If you get a difficult, fast ball while defending, play it simple and flat. Don't try a lob because it requires perfect technique under pressure, or you’ll just give them an easy smash.
* If you get an easy, slow ball, that’s your chance to be creative with a lob or a chiquita.
3.Stop trying to end the point too fast: This is the most common mistake in intermediate levels (I still struggle with this sometimes!). Instead of playing a simple shot to the middle or open space to build the point, we try to hit a 'smart' winner into a tight corner or the side fence. Most of the time, it hits the fence or the glass.
The problem isn't your skill.. it's your decision-making. Try to play simpler, build the point patiently, and let the opponent make the mistake.
Thank you for the great advice! I was actually doing the complete opposite and trying lob on fast balls and flat on easy balls… will try to adapt!!