Anxiety between appointments

I had my first appointment at 7 weeks to confirm pregnancy and we saw the heartbeat, but my next appointment is in 6 weeks for the FTS at 13 weeks and I’m super anxious…how do I convince myself not to worry so much and have faith that baby will be okay in these 6 weeks? Second pregnancy and first was smooth no issues but I was also this anxious back then…im just really worried about miscarriage and whether baby will grow well in these six weeks and I hate not knowing in the middle whether everything is ok I think last pregnancy I had a middle checkup around 10/11 weeks before FTS but this time my dr said everything looks ok 6 weeks is good enough