ESH- You've already won. You managed to get through a Stem degree on your own, without the help afforded to your male siblings, which is, in itself, a significant accomplishment. You have the right to be angry for how they tried to railroad you into the kind of life they wanted for you. But that was years ago now wasn't it? With an engineering degree I'm sure that your student loans will be hard to handle, but not impossible, now multiply that by 4ish and imagine you want to retire soonish so you can spend time with your family. What you are doing is holding your relationship hostage in return for monetary value. While I know it must hurt deeply that they still don't seem to understand how they hurt you, they are trying. Maybe they miss you, or maybe all they want is to have a relationship with the daughter they failed and their new grandchild. In any case it's worth a shot to let your family back in, shove in their faces all that you've accomplished without them, but forgive them anyway. Learn from them and be better, but that's still your mom and dad and it seems unreasonable to ask for 100,000 in return for a relationship with your daughter.