I know that I won't be successful

I know that I won't be successful I'm the oldest of my siblings. My father has 5 years until retiring. My brother's are young and I will have to be the one who takes care of them. I don't think that I will be able to because of my stutter. Every time I think about it I get nauseous and the anxiety is just debilitating. I'd like to think that everything will be ok but in reality I'm sure that I'm in for a tough ride.