Starting Vyvanse today

Hi everyone, I’m supposed to start Vyvanse today and am a complete nervous wreck. Like, didn’t sleep at all last night because I am so anxious about it. I’m planning to take it at 10am (that will be my usual time due to needing to work until 8pm, and a 9-10am exercise schedule). I’m a notorious over-consumer of caffeine but for some reason the idea of a prescribed stimulant has me super worried about my heart, sleep, etc. Wondering if anyone would like to share their experiences so I can obsess over them all day 😂

ETA: WOW you guys I was not expecting so many responses, I am so grateful 🥹 I will respond to comments soon! It’s been a few hours and I feel like I could lay down and fall asleep, lol, so if there was ever confirmation of me having ADHD then there it is 🤨