Make sure you're in a relaxed state. The best times for this are immediately on waking or just before you go to sleep.
Know what you want and ask the universe for it. After all - If you don't place your order with the Universe, how will it ever know what to deliver to you? Create a movie of yourself being successful at whatever it is you want to achieve. Create as vivid a movie as you can. Turn up the colour, the sounds, the happiness levels you're experiencing, the tastes -- everything. You are living your goal!
Feel and believe as if the object of your desire is on its way. Focus your thoughts and your language on what it is you want to attract. Feel the feeling of really 'knowing' that what you want is already on its way, even if you have to trick yourself into believing it. Replace hope with firm expectation.
Be open to receive it. Notice the messages and signs from the Universe to confirm you are on the right path. Open yourself to receiving the very thing you want.
It doesn't matter how much you want something or how much you visualise a successful outcome...if you don't take action it won't happen. Any action will do to get you off the starting block and give you some momentum.
Listen this video to understand https://youtu.be/3_mD0CvVi48
How does it work? For me it's because planting positive images in your subconscious will switch your brain into the mode whereby it will automatically generate the endorphins that will give you the natural impetus you need to succeed. You'll then be more minded to take the actions that will take you to where you need to be.