I'm scared to become a mom.

My fiancé and I aren't TTC and don't plan to start TTC for at least another 3 years, but I'm scared that my children will grow up the way I did, good childhood on the outside but so many issues going on at home. I don't want my child to feel like I did, hating my home and dreading spending time with my family, always having my guard up, not feeling safe physically, mentally, or emotionally and feeling like I have to hold up a fake persona to protect myself when at home. Feeling trapped, unheard, scared, hurt, angry, and so many other things.

For some reason part of my mind tells me that these feelings are going to be inevitable for my kids. Anyone else feel this way? How did/are/will you deal with it with your kids?