18 year old trying his luck?

I am 18 years old. I came from a poor background. I have no car. I dont have the new phone. I can not afford to dress well. While my classmates wear their nike shoes, I have wore second hand walmart shoes for 2 years. For some time I have been savin some money. I have $1900 saved in my account. I will be going to university next year. My education expenses have been taken care of. I have to make a decision. Do I spend my $1900 trying to buy a car or maybe buy good clothes and shoes to look presentable in university or buy a new phone so i am not bullied OR I invest this money by starting Amazon FBA. I think amazon fba has the potention to change my life and give me a chance to take my family out of poverty. I just want to make a right decision. what do you guys advice?