Sleep Training my 10 month old Baby

Getting my baby to sleep through the night- I have been putting it off for so many reasons, even though I would really like her to sleep more at night, and especially me to sleep more at night. I understand it more now. My baby saved me through my father's death and the month's that followed. When my dad was in the ICU, my baby wouldn't take a bottle, so I would rush home every couple of hours, or someone would bring her to me, so I could feed her. She needed me. I had to stay healthy for her. I ate and I drank water for her. In the months that followed, I sat in her room at night feeding her thinking of my father and how hurt I was and tried to figure out ways to understand why this happened and how to make sense of his death. With my dad's death, my love for my girls is even more on the forefront of my mind. They are my everything. My world had been turned upside down, and I felt like nothing mattered anymore. The only thing that mattered was that they had a good life. That kept me going. Having my baby cry because she wanted or needed me, has been too much for me to handle, so I always went to her. I wanted to help her, like I couldn't for my father. So now, moving on and letting her cry it out and not feeding her at night will be hard for me. Though I hate the quiet time to myself in the middle of the night, I know I will miss it. It feel like it kept me connected to my dad and my reality. I don't want my baby to grow up, and I don't want the time to pass so quickly from when I last saw my dad. However, I know it is best for my baby, so I must do it.