I love physics. I truly love physics, but I fear I'm just not any good at it. A few days ago I took the comprehensive exam for my PhD. I'm 90% sure I failed. However, this is my third attempt at such a exam. 2 written exams and one oral (which I'm told I almost passed). Now I'm wondering if maybe I should just give it up. I'm clearly don't have what it takes to be a physicist. Though I feel my problem solving skills have really improved through these tests they are clearly not where they should be for a professional physicist. Also, my experiments have not progressed as much in the last year as I feel they should. It's true that there may be reasons for my difficulties. I'm trying to do a PhD in experimental physics with a 19th month old child and, until this week, no daycare. I've not been able to commit the time I would like to my studies. But perhaps this is just another reason to stop. Or maybe I'm just making excuses. I really don't know what to do. I love my work and have so much passion for my research and my field, and it hurts to find that I'm no good at it. But is it worth pursuing if I don't have the needed skills. Should I just cut my losses and find a new path? I welcome any comments or help anyone can offer. I'm glad I could get that off my chest.