I Give Relationship Advice But Am Terrible At Relationships

I haven't dated since I was 25. I've been hurt so many times and I just can't believe anymore. I've been cheated on, abused and emotionally abused. My friends have been trying to get me to date again and I haven't been out with a man in five years but I don't care. I'll be blunt, when some guys flirt with me or end up intrested in me, I tend to run away......or I don't know. My friends say I'm afraid of a real relationship, I'm 30 my chance of having children is ending. Bullshit, whatever.