Respect the public that comes out to support you. They're your support, not the critics, not the record companies. Rehearse, be ready. Be aware that it isn't easy. I've been in this business for 27 years, I've struggled a lot.
Nothing is given, beware of promises.
Don't sign a contact without having it seen by a specialized lawyer. It's rumored you have a project under way to sing French songs. I don't think I'm quite ready for it yet. I need to be able to sing in French perfectly without deforming the language. But it's coming, I think it'll happen in a year or two.