I'm 62 and the absolute max distance I can get is a little over 325' But my general average course distance is somewhere around 275-300'. And that's FH with a run up. I have a friend who is 72 and using his Wraith he gets similar distance to me with his BH. Again with a run up. He's been playing over 20 years, me a little over 8.
Unless its really windy I'd suggest a 150g Leopard or a 150g Jade as potential max distance discs as you improve your throwing technique. I have a horrible form and many aged, broken body parts so my max distance standing still throwing a well seasoned 150 Champion Leopard or a Jade is around 200'.
Of course distance is important, but think controlled accuracy. Two well placed shots and a putt will give you a three on most disc golf holes.
Sounds like you've already entered the community. Welcome aboard.