Anytime is the perfect time. Any day, you can sit down and make a list of the things that you'd like to focus on, the things that you think would add light to your life, and you can begin that day to move into that new energy.
There is something in each of us that is MEANT for us. Your only job is to find it and embrace it. Whatever it is, it doesn't matter. Do what you LOVE. When you do, your "job" won't be a job at all, instead it will be a gift you offer the world.