Feeling guilty

My son doesn’t walk yet, doesn’t talk, he says mama and dada but that’s it, he also refuses to eat solids.

I know you can’t compare other babies but man I’m having such anxiety and feeling like a lousy mother ever since I went back to work. I feel bad I’m not here every second to teach him these things :(

Is anyone else’s baby like this? When I am home I’m trying to do all those things with him but I feel like he’s such a active baby it’s hard to keep his attention for long