New Leaves Not Growing on Phalaenopsis

[Caroline_81]

I'm new to this board and new to orchids as well. I received my first phalaenopsis orchid in January and the flowers unfortunately fell in late February. I cut the spikes in March since they were brown and would probably not produce any more flowers.

Since then, my poor plant even went through a period when I wasn't watering it properly. Still, the leaves are a healthy green and firm. There doesn't seem to be any rotting or mould. And the roots are thriving in the bark.

My concern is that, despite the plant's heathly appearance, it's still not growing any new leaves. How long does it usually take?

Is there anything I'm missing? I really want to save this plant.

Thank you!