Destiny is not something which is set in stone, Vaheguru (wonderous enlightener) doesn't operate at the beginning of time only, but is constantly operating. We cannot entirely control our destiny but our actions can certainly affect our destiny. We should try our best to follow our Guru's Hukam (command), by doing so we will be blessed and many things that were going to happen to us that were from our previous Karma (actions) will get reduced.