Anyone with previous experience??
Tons of threads about this. Use the search function.
Well, you’re not close to the Ironman right now, so best to work on general bike fitness. Get the FTP up without burning yourself out, and right now, just have fun with it. Once you start doing more specific Ironman stuff (big rides, lots of miles, etc) it won’t be as much fun. Your FTP going in to the Ironman-specific training will somewhat determine what kind of a bike split you have on race day. So best to work on it while you can.