I studied with Marc Chatov, an excellent portrait painter, and he suggested that we read, "The Artist Way" by Julia Cameron. This is an excellent book. One thing she recommended is that each morning, the first thing you do when you awake, is right down all of the negative. Get it out of your system. Slay the naysayer. Get rid of the negative. Take five minutes and do this each day. This helps to provide you with more positive energy. And, keeps things that you want to do fresh in your mind. And, don't let the nayslayers hold you back. Do you know someone who is always telling you that you are stupid for trying to do or wanting to do something that is really important to you? Don't talk to them about it. Find someone who is encouraging and positive. This will make you feel good about yourself and make you feel young.