You need to do much more work first.

Trimming your reads is step 1 (if indeed, that's necessary at all). You now need to QC your reads, assemble them, likely annotate them, and then start using some comparative genomics tools (the most fundamental thing would be to start BLASTing parts of the assembly).

This is more work than can really be fully explained on the forum in a single answer other than at a high level, so I would suggest you familiarise yourself with papers, blog posts, tutorials etc.