Your options are:
A. Hope that you achieve your goal
B. Affirm that you will achieve your goal
C. Do whatever it takes to achieve your goal (ethically)
D. All of the above
Hoping you achieve your goal is a good start. Affirming you will achieve your goal is even better. However, doing whatever it takes to achieve your goal without breaking the law and/or hurting anyone is the most effective way to achieve your goal.
The key is to do all 3 every single day without fail. Make mistakes, learn from your mistakes, and seek support and guidance along the way. If your goal has already been achieved by another in some form, then find out what he/she did to achieve that goal and apply those steps to your own situation.
When I speak to people about their goals that haven't been achieved and I ask them why those goals haven't been achieved, it is always the same. That person is not doing whatever it takes to achieve their goals.
Now doing whatever it takes to achieve your goals on a daily basis is easier said than done, but that is why most people never achieve their goals. They think because something is easier said than done, it is a valid excuse.
Well, if doing whatever it takes to achieve your goal is not something you're willing to do, then maybe you don't really want to achieve that goal. Maybe you like the idea of achieving the goal, but you don't really want it.
Do you know what it looks like when somebody really wants something? Look at Black Friday enthusiasts. People put up tents and wait in a line outside of a Walmart, Bestbuy, or a Target for days, just to get some T.V. or some Ipad for $100 off. Then when the day comes they rush into the store pushing, and shoving their way past anyone who gets in their path as they search for the item they waited so desperately for.
That is what it looks like to do whatever it takes to get what you want. When you really want something you will make sacrifices to get it. You will wake-up earlier, stay up later, miss out on events, and miss your favorite t.v. shows, as you take the necessary actions to achieve your goals.
If you don't have an intense drive inside you that propels you towards the achievement of your goals, then you need to dig deep and find your "zone". You need find out what your buttons are and you need to know how to push your own buttons. Some people are strongly motivated by frustration, hunger, and/or misery. Others are motivated by excitement, ambition, and/or optimism. Some people are motivated by a combination of different things.
Without that intense drive and desire to succeed, it is very difficult to achieve a goal. Will power alone will fail you, you need to go after a goal that fills you with excitement and a rush of positive energy. Self-discipline is important and you need to develop good habits, but there must be a natural drive inside you. Either you have that natural drive, or figure out a way to create it.
In some cases you can manufacture a situation where you have no choice but to get in the "zone" and in other cases you may need a little help.
Just know this. If you want something, you must go get it like a black friday enthusiast. Be willing to do the extraordinary and you will achieve the extraordinary.