Im so confused what do i do?

(You guys please help me) Im 16 my mom lives in Louisiana & two of my brothers live with her and my other brother lives in nashville Tn.The two tht live with my mom are scitsiafrinic idk how to spell it but it's a mentally ill disorder and it's not a normal house hold.So it's summer now and i just moved with my big brother the normal one in tennesse we have different dads mine passed away But until we get a appartment which that will be a month or two we are living with his dad and wife im so uncomftorable here i can't take it i don't even like going upstairs to use the bathroom and it's not even getting better my brother is at work all day so it's ochard all the time! but i think it will be better once we move into our appartment & when school starts i have the option to go to a private school and now i can get my license and all that if i stay i miss my mom but she wants me to do good in school should i stay here? Please help i know it's alot to read.