Over the years I've developed this bad habit of excessive sleeping. I wake up early but still during day I cannot control my sleep. I really despise it but I'm not able to help myself.
I've read about Prophet (saww) and Aimmah's saying regarding sleeping but still not able to stop sleeping in the day.
Please help.

Cold shower and go for a walk, works a charm. It’s a habit, you need to unlearn, get busy and you won’t sleep.
Cold showers will wake anyone up.