For me this is the fun part. Making a list of things to do.
If your goal is to build a deep bed, do you know what materials you’re going to choose? Where you’re going to get your soil to fill it? What you’re going to put in there? Seeds? Starts? Transplants? Where will you get them and when do they go in the ground?
If your goal is to create a water feature for bees what’s it going to be made out of? Where will it go? How will you access water? What can they stand on while their drinking so they don’t drown?
If your goal is to plant an orchard have you picked out your fruit trees? Do you need fencing? If so how much? Will you need a post hole digger? Where will you get your fence posts?
If your goal is to plant an herb garden do you have list of herbs you want to get? Do they need full sun or shade? Do they stay out all year or do you need to keep them in pots so you can bring them in during the winter?
Make a list of all the things you will need to purchase or gather and do for each step of your goal. Make sure you have an idea of how long each project will take.