Lessons are one of the worst things you can do believe it or not.
Every golf pro is so focused on trying to teach that PERFECT swing (which there isnt), that they dont look at what really matters.
The only thing you need to concentrate on is the way the club contacts the ball. The before and after means absolutly nothing.
Not everyones body moves the same so not every swing is the same. I have really tight tendens in my back and shoulders from excessive lifting as a youth... thus, my form sucks, i have to muscle everything thru. My shoulder rotation is limited so usually, if i just swing away, i like to slice like a monster.
However, if i slow down the club, and concentrate on hitting the ball solid, i can hit it dead strait around 240-250yrds w/o too much problem. If by some chance i get lucky on one of those all or none swings, 300yrds is not out of the question... with a swing that feals like a "unfolded lawn chair" [Tin Cup].
You best bet is to learn 3 things... how to properly grip the club, the proper placement of the clubface at the point of contact, and how to not get frustrated when you dont hit a good shot. Get those 3 things down, and youll be able to get the hang of it pretty quick.
OR!
You could be like me and play for 11yrs and still have a 30 handycap