Working mom. How to manage

I know I’m preaching to the choir, but I have an extremely high power job. I work super early which allows me to pick my son up by 3 most days. The problem is I can’t keep my eyes open from the moment I get to work to the moment I go to bed. I feel so guilty, my son just turned one and i feel like I’m cheating him. I should be so attentive and I cannot. The second my husband gets home I basically pass out. I miss bed time, bath time, story time 😭. On top of it majorly slacking at work. Need encouragement!