Insomnia!

I have struggled for years with this. I remember back when I was in high school being the last one to fall asleep when having sleepovers with my girl friends. Here I am 24 years old with a toddler and still struggling with insomnia. There are nights I don't fall asleep until 4AM! That makes for a looonnggg day with a 2 1/2 year old! I just don't know what to do! I need help! So tell me, what helped with your insomnia? I am ready for this to just be over! I am so snappy some days and I know it's because I didn't get enough sleep. I just feel terrible snapping at my boyfriend or sometimes my daughter if I'm really over the edge. Please helppp!! 😓