Couldn't disagree more about bad habits, having taught CPL/IR, the worst thing about teaching someone who had not come through our training system, whether they were PPL, part finished CPL or completed CPL doing an IR, was having to train out the bad habits picked up from flying alone or poor training. If you want to train someone to fly to your high standards it is nearly always better to start from as close to zero hours as possible. If you have a CPL/IR and don't keep current and by that I mean fly every 20 or so hours with an instructor to ensure you don't get into bad habits, you risk getting sloppy. I'm not saying give up if you already have a license but be aware that without training and high discipline you will inevitably get steadily less sharp.....best of luck with the job search.