"I'm" is a contraction of "I am," and it's a common phrase used to introduce oneself or express ownership. However, there are plenty of other synonyms you can use instead of "I'm" in your conversations or writing. Some examples include "I exist," "I'm present," "I live," "I dwell," or "I reside." Alternatively, you could use more specific phrases that add context to your statement, such as "I feel," "I believe," or "I think." Whatever synonym you choose, it's important to remember that each one has a slightly different connotation, so choose the one that works best for the tone and purpose of your communication.
