Tambit he is talking about doing a local show where alot of the times they don't even have enough competitors to fill up all of the weight classes.
To the original OP, I have to agree with Brown Ninja, I would work on conditioning because essentially that is the one thing you can definitely control during the fight. Being able to last and not gas out in the 1st minute of the fight is extremely important if you want to be successful.
Also congrats on trying something new and exciting out that most people would never try. I know I still have not decided to fight on the amatuer circuit and I am 29.