I don't know what to think at this point... I love my fiancé and the father of my beautiful daughter…

I don't know what to think at this point... I love my fiancé and the father of my beautiful daughter so much from my heart but I feel like I'm not good enough for him 😢And when I think about this, Sometimes I just wanna walk away and not look back but in my heart I don't won't to leave him and family that I built with him. It's like I'm having second thoughts about everything. 😥