My daughter started waking up from night sleep with a pitiful cry, eve…

My daughter started waking up from night sleep with a pitiful cry, every morning for the last week, straight from tears. Yesterday she slipped out of bed and was scared, cried so pitifully, already heard "mama" when crying ? I'm such an idiot, didn't put her in crib and went to do housework, always put her down and leave, maybe she's now afraid that I'll leave her and she'll be scared again, fall down again and will hurt ? Before I thought she was crying because she still wants to sleep, because before she wakes up she struggles to wake up, after falling I thought maybe everything is because of me.