Its okay :)
Speak to your dad, when you have a chance to get him on his own, even if its for just a second, say - I really need to speak to you.
He should thenn make time for you, any dad would.
You dad is only supporting his new girlfriend, she lost her baby, that’s something his made and has just been wiped out in front of his eyes. That really does mess somebody’s life up, knowing that soemthing you once created, doesn’t live no more.
You cant always be centre of attention, because your dad has more than one priority now, he still loves you, always has and always will, but things are going to change as you get older, and your dad probably doesn’t understand how your feeling now, so you need to express yourself to him, let him in on your feelings and whats troubling you.
Try not to resort to cutting yourself because it doesn’t make you feel any better about the situation, dont harm your body please.
Smoking weed and drinking wont solve your problems, it wont change them and it wont make then go away. The only way you can solve this is if he understands what your going through. Your still your daddy’s little girl, but he has been through a hard time aswell.
You shouldn’t let your dads girlfriend rule you, she isn’t your mom, so dont let her be one, no one can replace your own mom so dont let her. Be polite but put your point across.
Your life will get easier and better for you, just hang in there and your time will come to show your dad whats been happening.
I really hope i have helped you here, let me no if i have or not please. And good luck <3