G'day Jody,
Hows it hangin, Glad you are getting some flying, try a few clicks richer the next time you fly, hot & humid needs richer mixture than cool weather.
When you have your motor running at full throttle, lift it nose up & listen to the engine, if it pick up some speed, as the nose is raised, it is rich enough, if it doesn't, richen it a few clicks & try again, don't try for max speed on the ground, as it will always be too LEAN, to fly.
The engine needs to be slightly rich before take off, so it has enough fuel, too allow the engine to unload in the air. The faster the engine revs, the more fuel it needs, in the air.