When you are unable to reach a certain point or goal, it can be frustrating. However, there are many synonyms for the phrase "not reach" that can help you express your feelings more precisely. Some possible synonyms include falling short, missing the mark, not making it, coming up short, failing to reach, and being unable to attain. Additionally, you might use variations of the word "reach" itself, such as "falling behind" or "lagging behind" in your progress. Ultimately, the exact synonym you choose will depend on the context and your intended meaning, but exploring the many options available can help you better express yourself.