Inshallah you WILL change your habits sooner then later… every time shaitaan comes to you just remind yourself of… umm… ok; death! tell yourself; “Teggy ke bache, tumhe nahi maloom ke tum agle 2 ghante ke baad iss dunya mein ho ge ya nahi! so if u cant give yourself a guarentee for the next 2 hours, get up and pray” say Astaghfirullah to the shaitaan that attacks ALL of us, nad fight brother… this is your internal jihad and you must win… there is no space for loosing 
Inshallah once you manage to establish salat on a regular basis, you can direct the rest of your family to do the same.
One more advise though… join an Islamic Organisation… this will not only busy you in deeni stuff, but bless you with the opportunity to meet and make friends with good Muslims who will encourage you in the right direction!
Dont mean to further scare you, but this is something I remind myself of ever so often…
Wassalam
ur the best!!!