Gratitude or appreciation of what we already have is necessary to attract things we want. Every day when you wake up try to be thankful. Think about the good things in your live you should be thankful for. Appreciate your job (even if you don't like it).
Feel gratitude for a place to live. If you have some food, some friends or anything else you can find to appreciate, appreciate it. A lot of people don't have enough even basic things like food, water and their own place to live. It's natural that you want more, that you want to improve your standard of life, but first you need to feel gratitude for what you already have.
If you start your day with feelings of gratitude you will feel good and you can keep that feeling all day.
But you should also write down something like this: "I am so happy and grateful that…" and then write what you would like to have. For example: "I am very happy and grateful that I make $1 million per year; that I have wonderful and loving wife…etc." Use the present tense, visualize the things you want, be grateful for them, and think about them as already yours. When you achieve them, you can add new things to your list. When you write about money, start first with amount you believe is possible and then increase the amount when you got the amount you'd written down. Be specific.
When you start doing as described above, at first you might feel strange that you are using present tense for the things you want to have in the future, but it's important to train your mind and force your mind to think about them in present tense. After some time of playing such "mental ping pong" your mind will obey and will help you to achieve the things you want.