Please tell me I am not the only one

So I am starting <a href="https://glowing.com/glow-fertility-program">ivf</a>/icsi in a week... I am so scared and worried about if it’s going to work or not?! I am 25 years old and been trying for a baby for 4 years I have one tube and mild pcos... but I can’t stop thinking about it’s not going to work 😓 I’m so desperate for it to work.. I always have a worry feeling in my stomach :( anyone else felt like this and it worked?