I second bellylaughs it all depends on your parenting style.
Controlled timed crying worked for my when my DS went through a phase of massively kicking off when I put him to bed (he wasn’t always like that) but he suddenly started doing it.
You leave them to cry for say two minutes then go in, say “shhhh” lay them back down and stroke their back or their hair. No talking. And walk out. Of course, the crying starts again but this time you leave them for four minutes and go back in and say “shhhhh” and lay them back down and walk out and then leave it for 8 minutes and then repeat.
By doing this you are teaching them that they need to settle themselves but you are also teaching them that you ARE still there and you’re still around. The fact that you are increasing the time is just giving them more opportunity to settle themselves.
I’m by no means an expert, I only have the one but that worked for me after about four nights he never did it again.
What I do know is that if your want your child to sleep in their own room and you don’t want to be effected by night wakings then teaching them to self settle is paramount. Because then when they do wake up during the night having learned to self settle when they first go down to bed, they gradually learn to do it through the night as well.
Like I said, really it depends on your parenting style. A lot of people are against this method and against “sleep training” entirely.
I’ll leave you the link to the info below. And I really do feel for you! Sleep deprivation is just purely bloody horrendous 
www.jofrost.com/controlled-timed-crying-technique-ctct/