hi welcome to healthcare magic..HPV 16 and 18 are high risk virus types which will lead to cervical cancer. since ur pap smear report showed atypical precancerous cells, u r always at risk of developing cancer in the future. so it would be better if u consider the option of total hysterectomy(as u r 50 yrs old) which will completely eliminate the risk of developing cancer in the future. Earlier the better. Rest of the activities can be dealt with later on. follow up is mandatory to check for progression of the disease. All the best.