How to get what what you want in life?

Like I suppose out of life rather than in it. I don't mean how to get an iPhone off your parents haha
but how to get what you want in terms of achievement and happiness etc

Getting what you want out of life depends entirely on you.
Not everyone wants adventure. Some do, some don't
How you go about getting this happiness is so varied, and not always guaranteed.
You may set off with a goal in mind, and be distracted by something along the way, and find out that's what your goal should have been.

A question to ask is, if you achieve your goal, what then?

The first thing you need to do, and the reason why many people don't achieve their dreams, is that they don't define their dreams. You should know exactly what you want in life.
Put it down on paper. Your goals should be as specific as possible Eg. Instead of writing "I want to be successful" you should define it as "I want to own 2 cars by 2020"

Write these goals in a diary every day. This will let you focus and be reminded of your goals everyday.

All the best.

The trick is to develop a realistic vision - something that is both possible and will serve you well in the long run. The best way is to go with something that really is very much YOU. With that, I mean things like, will you be able to live the way you want to live, where you want to live, surrounded by the kinds of people you want to be surrounded by.

It took me too long to find that out. I pursued all sorts of things around the globe, thinking "if I get THAT, everything else will just sort of fall in place." Well, it didn't.

Always keep the entire picture in mind.

Well, is the answer to this not obvious?

Work, work for it.

For you to be successful you need to know where you are headed. You need clearly defined goals and to plot out your course ahead of time in life. Many people make prominence and prosperity their goal in life. Yet, success does not necessarily lead to happiness in life. Rather than being driven by pride and ambition, think of what achievement would really make you happy in life. Have a vision. Your aim should not just be to find a good job, but to be able to communicate well, to think logically, and to reason calmly and respectfully with others. Simply pursuing material things and pleasures does not satisfy the need to have meaning in one's life. See Awake magazine and Young People Ask Book vol 2 on jw.org

If you are seeking a new and different explanation of the truth that makes sense, search for TRUTH CONTEST in Google and click the 1st result, then click on THE PRESENT and read what it says. This is truth you can check.

First you have too figure what 'life' wants out of you.
Key:
Always do the things that you love; and, you will always love the things that you do.
You are here for your benefit and for the benefit of all that is within your influence.
Keep this in practice and you may not always get the things you want; but, if you try sometime, you just might find, you get what you need.

Figure out what your aptitudes and talents are, especially things that you are naturally good at and enjoy.

Figure out some of the worthwhile things that people are doing.

Help some of those people, by applying your talents to what they do.

You not only get true, deep satisfaction out of helping make things better, but you'll be surrounded with the best kinds of people -- smart, committed, good, fun-loving people.

The big thing is love. That's what turns on everything else - interest, ambition, satisfaction, knowing what else you want in life - all of it. Get that, and everything else becomes clear.