⚓︎maybe he's not right then. it sounds like if he didn't want to get married, it's not your fault. he could've said something a long time ago. if you feel like a sex toy, tell him. if he responds in a way that makes you feel degraded, he's not worth your time. you want to be with someone that wants to be with you. i understand that. maybe talk to him about taking a break, spending some time away from each other. maybe he just needs some time to realize that what he has is actually pretty good. there are plenty of people out there that don't realize what they have until it's gone...as cliche as that sounds, it can be completely true. i hope things get better.
⚓︎why do you think this? is it because you do not have a job? because you don't get good grades? because you don't help around the house enough? these are all actions you could change. i don't think you're useless. every human has the power to do something. don't give up. i've felt like this many times. if you truly think and know that your parents think your useless then maybe they don't have the right idea about you. you're worth something, i promise.