Career at 45

Hi

I did my masters in biotechnology in 2004.soon after got married and came here.i have never worked and was full SAHM .however I think I can start my career next year inshallah. Totally clueless where to start from..meanwhile any tips on how to prepare or any refresher course.i was thinking maybe I could teach in coaching Institutes as they don't require B.Ed or maybe stick to my line..any ideas are more than welcome