If you spend any time on the internet or even in the self help book section of the library, you're probably familiar with manifestation, cosmic ordering, or 'the secret'. These concepts are all amazing, and I really recommend them. However, I think that a lot of the time they are presented as straight up magic.
And, the people that really want magic to be real, the optimists, will do what they need to do. They'll repeat their affirmations, tell the universe what they are ready for, and then, and this is the crucial part, they'll do what needs to be done to make it happen.
Unfortunately, in most circumstances, it's not enough to just do the affirmations. You can't just tell the universe you are ready to be a millionaire and then expect £1,000,000 to be deposited in your bank account the next day. Saying out loud is what needs to spur you into action.
So yes, you can make your dreams come true, most of the time. But it's not magic, it's hard work.