Question regarding CST to CRNA...

Hi everyone, I apologize if this is the wrong place to ask this, but I'm currently working on becoming a CST. I have a career plan in mind, but I wanted to ask people who have been there, done that. After I am working as a CST in the next year, I will be thinking about attending nursing school to become a RN(BSN completion.) After that, I am interested in attempting to become a CRNA by the time I reach my 40s. I wanted to ask for advice in regards to my path in reaching this goal, and I know it's a big one. After i attend and complete nursing school and become a working RN, is it acceptable to obtain specific ICU experience, and then attempt to go to a certified CRNA school, or is there more to it once I reach that point in my career path? Thank you so much for anyone who takes the time to read this and I appreciate any other insight into my prospect. Thank you and best wishes to the new year.