Because those programs weren't built for where you are right now.
Different hormones. Different body. Different life. What worked before was designed for a version of you that no longer exists and that's not a failure, that's just biology.
Project You is built around what your body actually needs at this stage of life. Five pillars, personalised to you, with Joan in your corner the whole way. Not another thing to figure out alone. A system that works because it was designed for exactly this.