Sounds like you're doing the right things. The person, along with your father, would be able to get you set up properly.
Get fitted for your equipment. Your pro could make some recommendations, and there should be some demo days in your area where you could also try a variety of equipment.
Also, and I can't stress this enough, work on your short game. My practice sessions involve 80% short game and 20% full-swing. I practice the short game out of the sand, on hard pan, uphill lies, downhill lies, thick rough, etc., chipping and pitching up to about 80 yards. Putting is an integral part of this too, and I putt from a variety of different undulations.
I set the flags on the practice area at 10 yard intervals up to 80 yards. I hit each of my wedges from quarter to full swing so I know my distance with each wedge and each kind of swing. For example, today I was playing the 9th hole at my home course and had 65 yards to the pin over a bunker. I knew from my practicing that it was a half PW shot. I put the ball 8 feet to the right of the cup and made the putt. I'm no expert, but doing this kind of practice takes a lot of guessing out of the short game.
I also practice chipping using a variety of clubs, I even use my 27º hybrid. Depends on lie, how much green I have to work with, etc.
It sounds like you're starting out right with lessons. You won't develop any of those bad habits many of us have by not initially taking lessons.
