As a first time baitcaster, my advice would be to use 10-12lb test regular mono until your more experienced with the operation of a baitcaster.
Braids are very good for specific purposes but really not for the beginner. As a "newbie" to baitcasting you will make plenty of mistakes, as we all do, so you should use mono as it is , perhaps more forgiving and less $$$ if you have to remove a lot of it.
One of the first prioritys would be to set the cast control and magnetic adjustments correctly. The cast control, near the cranking handle should be set so that the lure falls slowly and then with the mag control knob on zero make small adjustments.
Short casts at first with the proper size lure, practicing using the thumb to stop the spool just before the lure hits the water or ground depending where you are practicing.
Back yards are great places to practice your casting, at least a hour per day, in the beginning. The key is practice !. MJeff