And how many more years do you expect to wait? How many books do you need to read for this? What courses and trainings to attend? Don't wait until you become happy! Waiting does not work. Don't wait for circumstances to change.
Start your happy life right now. Rejoice and laugh! Know that laughter opens your heart and soothes your soul. Do not take life so seriously that you learn to laugh at yourself. Act as if failure is simply impossible, and success is guaranteed to you. Drive away the thought that you will not achieve your goals. Be braver and do not hold back the huge potential that your own imagination gives.
Stop and think about what joy today has brought you. So take your first step towards becoming happy regardless of the circumstances!