Reality check

Now comes the hard part, you have to be realistic again and prioritize what is possible and what is really needed. Use a diagram to give priority to your wishes.  Put numbers, ranging from 1 to 10 (with 10 being the most important) behind all your wishes and make a new list, one you can use for your grand design plan. You can use a list like this.

Elements

If something is too expensive now, but you hope to be able to afford it in the future, keep it on your list. Most gardens take years to complete. Otherwise look for more affordable options or do the hard thing and just remove it from the list. If space is a problem (not having enough of it), than look if some areas can be used for double purposes. Storage in winter, greenhouse in the summer, vegetables as foliage, and maybe one sitting area instead of two would be enough with the right kind of furniture.