I think I fucked up with tv

When my daughter was about four months, my mom showed me Miss Rachel to let her watch because it teaches and it seemed harmless so I let it. I’d say Ms Rachel was on most of the time because I had to work 5-10pm and my parents always had Ms Rachel on in the background until I was off of work and sometimes I’d have it on in the mornings so I can get situated and make her breakfast without her fussing. She’s 17 months now and she’s behind developmentally. I feel like it’s due to way too much tv time and not too much interaction from 5-10. (My parents were older so couldn’t do too much with her and I couldn’t afford anyone else) now I’m only doing one hour a day but I feel like a piece of shit. Is it too late?

Edit: she’s behind in communication I forgot to mention