Try to do simran longer, so every day try to add another 5 mins. When you finish and get up continue doing simran. Try making simran a part of your everyday activities. When you wake up in the morning, shower do simran, getting ready for work, driving do simran, at work do simran etc try to do as much simran as you can.
It can be difficult and frustrating at first but after some time it becomes a habit and you will start experiencing more bliss.
Sadly & unfortunately I have been down this slope & have also seen others go down this slope.
Mind is very very tricky. In Islam mind is called Shaitaan 👹 and in Christainity it is the Satan with red horns 👿