How long have you had your present garden Girasole? I'm known on the forum as Chris, nice to have you with us.
If this is your first year I would leave it until Spring, and see what you have to work with. You might have all sorts of treasures
hiding, just waiting to emerge, or is this a new build garden, a blank canvass?.
No planing went into our garden, it has evolved over many years, changing as the family grew and needs altered. If I was going to develope a new garden I would sit down and draw a plan, consult books, and go from there, just see what works for you and your needs. Best of luck
.
Chris.