I feel like I’m not cut out for parenting...

My daughter is two. She rarely listens and whines about everything. She has some good days but damn... I’ve been feeling like a bad parent because I try to be sweet with her, but it seems like the only time she listens is when I’m being firm, and that takes A LOT of my energy. I don’t have any other mom friends, we’re not around other children so I don’t know if this is normal. She’s definitely not all bad, but i just don’t know... I figure I’m a bad mom because I often see other moms happy to be parenting and I always question how could they honestly feel that way, but to be fair I feel proud to be her parent at least once a week.