Please help with insomnia in two year old

Hi, my family is desparate, our 2.5 year old has not slept well simce birth. She has a cold now and with a cold or teething it is especially bad and she stayed up all night last night, just yelling and fussing and talking and nor able to sleep.

I had emotional trauma when I was pregnant, in the form of a fall out with my mother who we lived with, the death of a beloved friend's pet when he was under my care (he was old) and geeat financial instability and emotional meglect from my husband. We were not able to pay our bills and when we were housesitting for our friend my mom (who we loved with at the time) threatened to kick us out over a minor disagreement (myself, my husband, and our older son) and would not return my calls. I emailed her to say we were looking in to a shelter and got no response. I was beside myself. This was in the last 6 weeks of pregnancy and after that I suffered much diarrhea for several weeks, and premature contractions. I also experienced a chronic yeast infection when pregnant which was not going away till the day before I had her. I wanted another child but felt ambivalent and nervous about having another since we had many hardships with my son (who also did not sleep).

We did resolve our conflict and my daughter was born at 41 weeks, very fast, we did not make it to the hospital room on time and she was born in the hallway caught by my husband. She had great nursing trouble (as did my son) and we found out she had tongue and lip ties which were later corrected (lip tie grew back) twice but still had to be bottle fed. Screamed and very angry at breast. Had torticollis and larygomalacia with reflux, hasnt totally outgrown laryngomalacia (we still slightly hear it when she is sick).

Very restless baby, strong, lots of energy, loud cry, colic. Always sleeping troubles, both falling and staying asleep. Very alert, doesnt miss a thing, has separation anxiety but when is happy is very funny and loves music. Talks a lot and well and can be very sweet but strong personality, opinionated and impatient.

Brown hair and dark eyes, nodule in left earlobe. Tends toward constipation and gassy. Bothered by cow milk so drinks goat milk. Generally good appetite, hates slimy vegetables.

I truly believe her nervous system troubles came about from before birth, and exacerbated after, I also had pp depression with my second difficult child who couldnt sleep or feed and cried constantly. I just need her to sleep. Please help. Thank you!!