I am a fairly new step-parent to my partner's little girl (almost 2 years) I'm struggling due to my mental health condition, constant fatigue and abusive upbringing. I often feel like I can't carry on and that I'm undeserving of being a parent figure. I also, on the other hand feel unhappy that I'm not a biological parent and feel I have nothing of my own and I struggle daily to 'find my place' I then feel like I'm being overly-emotional and selfish and then guilt arrives soon afterwards. She's only 5. Why am I feeling this way? Why do I feel like I'm making this harder than it really is?