My daughter is driving me crazy

I'm a mother of two boys and one girl. I have single handedly raised my children for the last 20 years. We have been through hell but I did everything in my power to give them a bright future.

I recently learnt that my daughter (first born) who is now in senior six started sleeping around with men.

I decide to take her for counseling and family planning because I was afraid she might get pregnant. However, towards the end of the first term holiday she ran away from home with her boyfriend.

I have tried to trace her but all has been in vain, I do not know if my daughter is fine. What should I do, help me fellow parents.