Texas to Brazil
this trip sounds to me like it might last several months, you will have to get a boat in decent condition, and expect to spend a lot of time waiting for weather.
If I were you I would probably try to sail as follows:
1) Texas to Miami sailing along the coast, this will take you a LONG time but you will gain some good experience in some pretty safe grounds...
2) Miami to the Virgin Islands (this is called the thorny path), look up a book called The Thornless Path to Windward - The Gentleman's Guide to Passages South. This book has plenty of good info on this leg of the trip.
3) Virgin Islands to Trinidad, this should be the easiest part of this trip.
4) Trinidad to Brazil, this looks like the hardest part of the trip, windward sailing with a lee shore in what looks like a mostly uninhabited shoreline... but by the time you get here you would be a pretty reasonable sailor having made it so far.
Keep us posted with your cruising plans... I'm hoping/planning to do #2 and #3 at some point, hopefully in the not-too-distant future...