First pregnancy advice/tips

I am only 5 weeks pregnant with my first pregnancy. I am only 19 and very uneducated on the topic. I have read that during the first weeks you are more likely to have a miscarriage so is there anything I can do to prevent it? I also need advice on what I should be doing, eating, etc. to ensure I have a healthy pregnancy/baby.

I know that basics but does anyone have any tips from experience or anything? Need all the help I can get ❤️