Focus on the ones you do know. List them, prioritise them, and then manifest them in order of importance. As you manifest one or two, they will then allow other desires to manifest, and they will also give rise to further desires in you. Further desires which will fill in the blanks so to speak. The Universe is all intelligent and knowing and knows what you will like, so it gives you certain big desires at the right time, and when you get them, it means that THEN is the right time. Manifesting them and also the improved feeling point in your emotions, will then give rise to and aid manifestation of, other goals.
Life will show you what you prefer...just start getting excited for it!
Here's a really helpful post - the caption too - if what you truly want is not manifesting yet:
Make sure you tap into your heart when you try to plan your manifestations.
I have heard this advice over a thousand times but I never really understood its application.
You can utilize the information from your past or imagine something totally new or a combination of both. And then see what feels desirable to you. You will actually feel a sense of joy filling up in your heart space when you focus on the desire of your inner being. To me it feels very similar to the ‘high’ you experience after a cardio workout or a yoga session or a cup of coffee. Chase that feeling always.