I agree with you that we can't rely upon our friends and family on that Day. The realization that I must stand before Allah to give an account for my life is what led me in 2001 to practice Islam consistently after 19 years of wishy-washy practice. I knew that I could not use the excuse that there were some people who did bad things in the name of Islam as the reason that I, personally, did not worship my Creator. I am the only Muslim in all of my faily, except for my wife, but I hold out hope and pray for my unbelieving family members that they will accept Islam before it is too late.