Changelings are fae children which are normally nasty creatures. If you claim t be a changeling, then you must be pretty young as they almost always die at a young age.
You could be part something, as I don't know everything. I just know you cannot change your form to be something else, not even with magick. So if that's what you're asking, just give up. One day we might be able to, but that's not any time soon. Might as well being the amazing humans we are and live our lives to the fullest, without spending forever trying to turn into a mythical creature.
The Fae are nature spirits that help the nature in their ways. I've encountered them once, and it was strong for a first hand meet. But I'm basically trying to conclude that Faeries are spirits. You can't turn into a nature spirit. You can, in fact, conjure them politely. Mail me if you want some help. Besides, Blessed Be! ~SullenMoon
Why conjure them, when they're all around you? You simply need to open yourself up to them, not drag one to wherever you are. Taking a walk in the woods in the same spot, cleaning it of tras often, and planting or watering flowers and plants there help you build trust. Eventually, they'll show themselves to you, and you'll have nice little companions.
Remember, they're not pets, toys, or anything like that. They're spiritual beings, and should be treated with respect.
AmberLover is right fae are so close to nature. I have the highest respect for the fae they are beautiful beings who look after our earth even though we are intent on destroying it. Fae are all around us by rivers, streams, woods, fire, even the air. They are not likely to be far away but if so you can ask to join you during your magick if they wish as long as you have good intention for it.
Thank you all very much I love fae it would be cool to be part something other than human but also to befriend different creatures is just as good I wonder if any of these beings offer a magical protection of you if you befriend them? Blessed be guys! :)
Accept the fact that you are human, you're going to be stuck like that for the rest of your physical life.
Fae are not physical beings, they do not have DNA therefore a physical being like yourself cannot be half fae. Once again! You need two sets of DNA for your development to have begun and fae do not have DNA so you cannot become part fae by somehow magically replacing half your genetic material.