Hi Vinny!
I'm late to the conversation, as always ... sorry about that ...
It sure sounds to me like you are approaching the game quite well for a new golfer ... a good attitude is crucial ... taking a lesson was a great early step ... working more on putting and chipping than the driver is exactly the way to go to get your scores lower sooner ... if you break 100 in only your second time, you will be living proof of a very good way to go about picking up a very difficult game ...
Don't worry about the driver ... on average, you will only hit the ball maybe 10-20 yards farther with your driver ... I've played many rounds of golf on difficult courses with the driver in the trunk so that I could carry an extra hybrid or wedge ... stick with the 3-wood for now and move to the driver only when you are comfortable with it ...
Your iron distances will be erratic until you really find your swing because you won't always hit the ball in the same place on the golf club each time ... and don't trust the stated distances to the signs and flags at the driving range unless someone can tell you for sure that they are accurate ... and even then, the balls you are using are probably not the same as you will use on the course, so the distances will not be the same. If you have a friend with a GPS, you can do some measurements with that, but the primary way to gage your distances is just to do the following on each iron shot: (1) note how far you are from the green ... (2) if you hit the ball well, make note of whether the ball was short or long of the middle of the green when it hits the ground (not where it stops) ... after a round or two of golf you will start to get a pretty good idea of the distances, which will help you make better club selections for the next 3-4 rounds, and you will eventually not have to make notes anymore because you will just know how far you hit each iron ...
Good luck, and let us know how it's going!
If you're not having fun, lower your standards.