only child

i’m a sperm donor conceived child living with just my mom. i’m an only child. i’ve figured out that i was conceived ivf and i probably have some half siblings out there, on my fathers side, to which i have know idea who he is. i dont want him to be a parental figure in my life but i just want to meet him and know what traits i got from him, and know who he is as a person. i know only half of my life, and its so sad and confusing