It sounds like you are insecure about yourself and you need someone to constantly validate you. I don't know a lot about the subject, but I would bet it's due to lots of neglect in your life, possibly a lot of it in your childhood.

I have similar problems. I mostly raised myself, had an abusive mother who sent me to another country by myself when I was 14, was never taken to doctors to get check ups or when I needed it, I was basically abandoned.
I grew up with horrendous self-esteem issues and I also became very clingy of anyone who would get close to me, while at the same time developing this cold, distant personality towards my family members.

I found out I can't stand being alone. I dated some pretty shady guys, I was unable to see red flags, I was used and cheated on several times. My previous relationship was the worst, as it turned abusive and he almost killed me, but I stayed for four years anyway.

I haven't seen a therapist yet but I am planning to by the end of this month. At the very least I've been able to come to the realization that I have issues that need to be worked on - and by shedding light on them, I was able to understand myself much better. It took years.

Hopefully with the help of a therapist I'll be able to work these out and become a healthier person. I hope you can do the same.

The first step is always acknowledgement and acceptance.

Best of luck to you.