I need some gym advice. Looking to do 3 days a week, for losing weight & gaining muscle, beginner.

Title. But to add to it I’ll say I work 12 hour shifts around 4 days a week, I have enough time for 3 days a week but I need some advice on machines and working out as I’m not accustomed to it all. I’m looking to lose weight as much as I can and whilst also gaining muscle; I’m mainly looking to lose weight in my face. If saying that helps any. Thank you all, give your best advice if you would 🙏🙏🙏🪾🪾