Help!

SO I weigh myself today and again I stayed the same :sad: that's 3weeks now what am I doing wrong I'm I eating too much/to little? Can anyone help me? I have read the road map & think I understood it so I'm 40 5ft 2 & 157.5lbs I want to lose 28lbs, my fat % is 37 I'm exercising 3/4 times a week, maybe i need to try 4/5 times a week? I try to stay under 1444 cals a day
I'm gutted and confused I work hard especially this last week with insanity & Kettlebells I feel like I deserve at least 1lb weight loss :laugh:. On top of all that all I've lost is half an inch from my waist
Anyone able to give me advice?