How are you?
What is the difference of three sentences?
1. I'm happy with the way I am.
2. I'm happy with who I am.
3. I'm happy with what I am.
Thank you in advance.
No significant difference, in this case. 'What' may suggest career or expertise or sexual preference, or any number of qualities, as may 'the way'. 'Who' may suggest the holistic entity.