If this is a childhood dream then make it happen. Stay focused and give it everything that you have.
Do understand that there are more crooks in aviation then probably any other field outside of attorneys. Most flight schools are interested in only your money. Ask the hard questions. Get everything in writing. Don't believe that someone has a "fast track" that no one else has. If it looks too good to be true then it probably is. Borrow as little money as possible. It's hell making payments when you live below the poverty line.
Good luck and fly safe.