How to look better?

Any ideas on how I can look and feel more attractive? Feeling kind of down about myself right now. I've been underweight since having my baby, but being too skinny isn't really what bothers me. It's my face mostly. I wouldn't say I'm ugly, just plain. I know that is mostly my fault because I don't put in that much effort, but I'm not sure what I can do about it. I don't wear makeup, can't afford it now and honestly don't have time. I'm stuck wearing an old pair of glasses that I don't feel very confident in because I ran out of contacts and can't afford to get more. My hair doesn't offer many possibilities for improvement because it's fine and thin so I can't do much different as far as cuts and it doesn't hold curl very long. Also my teeth are somewhat crooked and it can be noticeable when I smile. Fixing that is not an option. Any realistic suggestions or am I hopeless?😂