Still usage and despite suggestion [closed]

Solution 1:

(1) When you use the adverb "still" in this sense, it is more idiomatic to place it after the verb to be. (2) You don't need to repeat the pronoun "I". (3) The phrasing "it is something possible as a career" sounds very awkward, especially with the verb "decide". It is better to use "decide whether" before a choice of what to do, and something else like "determine whether" before a question about what is. I would suggest recasting your sentence to be more like one of these:

I fell in love with coding, but was still not able to decide whether to make it a career.

I fell in love with coding, but didn't know whether it would be a good career choice.