how do one know if they hajj was accepted

Slms mufti Allhumdulillah Allah SWT called us to the holy land to perform our hajj in 2010, how do one know if they hajj was accepted because I was told to have fear and hope if it is and when ever I meet my hajji sisters I tell them to make dua that Allah SWT accepts our hajj and they tell me that they hajj is definetly accepted with so much of surety and this makes me feel scared and confused of mine, I was not a practicing muslim and Allhumdulillah after haj I have been performing my salaah but faulter and try again, I changed my dressing from western to islamic, left my job and Allhumdulillah Allah SWT has blessed me with rozi from home, I make zikr read talim and quran, almost everyday,I gave up TV and magazine but still am very weak and fail and try again, is it because my hajji sisters are doing everything correctly that makes them sure or am I correct of always having that fear and hope jzk for all the good work and effort in striving to englighten the muslim ummah