What jobs are good for a 20 year old

I live in England and I’ve just left college I have no idea what i want to do as a career but that’s not the point of this post, I need a full time job so I can start driving and start getting money and I want to go give me cv in but I’m so nervous to walk in with my cv In some places because I feel like I’ll do terrible working there or I’ll just make myself look like and idiot. Anyone who knows what places are good to work please say I’m desperate right now.