alfa wrote:I try to suppress my thoughts as they arise. This calms me down.
Calming down leads to sleep, you need to energise your practise, the mind needs to be active and calm comes later.
I don't know where you learned the above approach but I don't think anyone here would recommend it.
You should bring your attention to whatever is happening in the present moment, body sensation, thought, breathing, feelings etc., noticing each and every little change arising and passing away. You want to be cultivating an alert mind not a dull mind.