Need some advice

I'm 13 and I've been struggling a lot ever since I moved houses, both my parents don't believe in mental health problems and they both are addicted to alcohol. Im scared to talk to them about my problems but I know they'll find out about my scars one day, the scars are kinda deep and easy to notice, and I don't know what to do. (I'll attach a photo of the scars)

I'm 13 and I've been struggling a lot ever since I moved houses, both my parents don't believe in mental health problems and they both are addicted to alcohol. Im scared to talk to them about my problems but I know they'll find out about my scars one day, the scars are kinda deep and easy to notice, and I don't know what to do. (I'll attach a photo of the scars)