Example:
Since as a little kid, I had passion about ...
Is this acceptable to say as opposed to:
Ever since I was a little kid, ...
or
Since I was a little kid, ...
Is It possible to write this without 'I '?
Because the context ( CV ) is about me and I think writing I was is a little redundant. Plus, the graphic design of the paper requires less used space.
Or is this completely wrong and has a fundamental grammatical error?
Since as a little kid, I had passion about ...
This is not an acceptable alternative to the phrasings below it. It might be a valid usage if by "since" you mean "because" and what follows describes the consequence of your childhood passion.
Ever since I was a little kid, ...
or
Since I was a little kid, ...
Is It possible to write this without 'I'?
Assuming you leave the rest of the words, no.
Because the context is about me and I think writing I was is a little redundant. Plus, the graphic design of the paper requires less used space.
Dan Bron's suggestion "Since childhood" might be a good choice, or even more concisely you could put an adjective (e.g. "longtime," "lifetime" or "childhood") on "passion" and make "passion" the subject of its clause ("lifetime passion for...")
