Let the dream come true

Hi everyone. My dream is to work with big game developing companyes like rockstargames , activision ecc. I studied to learn c++, c#, html languages and I know hot to develop a game, I am doing it. But to work with them you need to show them your works. As I said I am developing a game but I am having a lot of problem because of my pc, I have a laptop a compaq CQ58 and with that you can't go so far. I was saving money to upgrading my computer by myself, but since I found out that I am becoming father I used that money to buy items for the baby. Please help me to let my dream come true!