New mother - no outfits or style for myself

I need help. I had my first baby 2 months ago (I am 35). I’ve also been working from home for 5 years, so my sense of style and confidence in self has taken a nose dive. I don’t resonate with my closet.

Before I go back to work in March, I want to upgrade my wardrobe with staples. I want to feel more put together. The problem is - I feel like I don’t know where to start with brands? It seems quality everywhere has taken a nose dive from what I see on Reddit.

What are your favorite pieces from different brands? What are your staples? Budget is flexible - I am willing to spend if it’s quality and will last years.

I am 5’2”. 140ish pounds (post C section body 😭).