Anxious about flying!

I'm an anxious person. I'm currently on medication to help with it and I've gotten a lot better. I haven't had an anxiety attack for weeks and before that it was months. I'm flying to San Diego for a family vacation but for some reason I'm really anxious. We have a layover in between so the first flight is only about 2h50m and the second one is 1h10m. Could anyone give me some pointers on either some medicine I can take to calm myself down or something to do during the flight? I'll have my mom and aunt with me so that'll help calm me down.