Render the brick a dark grey, this will soften the contrasting bricked and metal windows. Then add very large and high (waist high) planter boxes both sides of the stairs with sturdy white flowers (agapanthus or hydrangea) this with pull the white door forward.

Move steps to near the door that is the front door, I would also make them wrap around a bit. Add some walkway in front of the steps... it's obvious now that traffic needs to go THERE and not to the middle door... add railings on the rest of the sections and a nice set of handrails onto the steps. I'd go white for the contrast. Maybe add sheathing boards around the porch roof support rails as you work there to make them a bit thicker visually and definitely all white.

Where you have the chair with the plant by the front door now, I would put a white bench, maybe a full seat that could seat two, with back and armrests, as a further invitation for those that come to your porch to come up and be welcome.

Along the two 'bays' that you don't want traffic on, a few feet out (so they have room to grow) put some low growing bushes, that will get no taller than about 4 feet. Low enough they don't need trimming yet enough to hide the foundation.

Paint the door you don't want people to come to some color that blends with the brick.

If you need more access to your porch put steps off to the left side there, but make them as low contrast as possible, and I'd put a gate at the top of them, to continue the railing effect.

You can put some outdoor furniture on the rest of the porch to enjoy it, even a small standing grill, but keep the colors muted down a bit, the high contrast, save for the main entry and guiding the eye and such to the front door you want to use.

IF nothing else, move those steps to the right to the last section of the porch where the front door is. Steps = where to go; and paint the door you don't want people to use the same color as the brick to make it visually disappear.

You have a lot of potential there; good luck on getting it to the house of your dreams.