What was your first job after being a SAHM?

Im leaving my husband after 10 years of relationship and 5 1/2 years of marriage. He’s changed so much to make our marriage and family work out but he has moments when he drinks too much and get very verbally abusive towards me even if I’m not doing anything to him. It’s rare now but those rare moments are the ones traumatizing my 3 kids. I’m 25 and I have been dealing with this for way to long. His family is toxic as well and I can’t have this around my kids anymore. Anyway I’m wondering what your first job was after being a SAHM? I have only worked twice in my life in retail and a call center and for a very limited amount of time. I’m leaning towards waitressing because I know they get good tips and I’m good with customer service but I’m not really sure because I’m also very shy and not sure how I would function in a fast paced job.