I don't how to love someone

Actually my family is forcing me to get married and i'm 24 but tbh i don't want to get married and i'm kinda afraid to marry some stranger, i don't believe in long time relationship, at some point everyone get fade up and many people regret about their marriage. No one in my family understand how i feel and even i tried talking with them but no use. Marriage and Relationship has been a big fear of mine. so i don't how to face them now. i don't how to love someone for long time!!! Tbh i always ask questions to myself like, what is love ?, how can you love someone for long time, what if you regret about it ?

English is not my first language, sorry if there is any mistake...