Hi Cute', Welcome!
Just do it! Whatever "it" is - it's not wrong. Build a feeder from junk you have laying around (just make sure it's clean, and leaching-chemical-free - pressure-washing old wood is always good), toss some seed in it.
The birds don't care beyond what they're physically capable of eating at. Some birds can't perch to eat on something upside down, some can. Some can't eat on the fly, some can. Some can't grab a wire cage and some can. Some don't eat off the ground, some do.
Try to keep it safe where cats and other predators are concerned.
_keep the feeders cleaned_. Clean out feces, bleach them occasionally. Always get rid of wet food that is going to mildew and rot.
A bird bath will increase both your enjoyment and theirs a thousandfold. Consider heating it if you're in a cold winter climate.
I think of my feeders as a growing and learning experiment. I started with two platforms I whacked together from scrap in twenty minutes. Now I have no fewer than fourteen feeders, perches designed for photography, and two water features (running and not). I still have my original two, still going strong, and still a favorite with half a dozen species. Whatever you start with, you won't end-up there unless you lose interest. Different feeders attract different visitors, and it's always fun to try something new for a few weeks and see what shows up!
The key is that you're providing them a safe source of food, water, and rest. During the tough migration and mating seasons, that is a ginormous difference for them. It requires almost no energy to completely top their energy reserves. In the wild that's like a dream come true. Trust me, they'll avail themselves of it!