LEL That you are able to recognize you are trying to do too much is good. That you are trying to do too much is even better. I promise you will never regret doing something for you daughter.
My exes parental rights were terminated in 1993, when my eldest was two. As a single father working construction, I failed serially, but still raised great kids. I homeschooled, and taught my sons math by paying them $10/hr to pull tape on sheetrock jobs, carry soil when repairing foundations, and whatever it took to keep them at my side, where I could do my duty to them to teach them.
It paid off in a lot of ways, but I never will shake the certainty I failed them in even more. One thing I realized is that good kids aren't going to be stopped from being good adults by any impediments that arise during their childhood, and I should have relaxed a bit.
TBQH, the only regrets I have are of those moments when I didn't put my kids first. Due to the incredible love we feel for them, these regrets are like acid on our soul. I recommend avoiding those particular regrets, at any cost.
Mostly, I recommend you enjoy every smile on her face. It just doesn't get better than that.
RE: Being A Single Mother: The Never Ending Chase