AITAH For feeling insecure because my wife earns x4 my income every Month

Hi. I am M(29) happily married for 6 years with two kids. Wife (28). Working as an IT. We are a classic family where my wife stopped working and focus on pregnancy, eventually, focused on taking care of our kids . She was very good with sales Job and I could say that she have this incredible convincing power that makes people buy. Our life was comfortable when I was the only one working (She's good in managing money), we can still manage to save some money up.

6 months ago I had this idea that she could get a job and we will just get a nanny to take care of our young kids. Since she's very good with sales and she's good in social media marketing, I advised that real-estate is going to be the best path for her. She's not a broker yet but she managed to meet a broker that can put her under their bucket and just keep getting sales.

She managed to get sales back and forth and she's now earning 4x than my salary every month consistently and I'm feeling I'm worried that she might leave me or am I just insecure about her success.