Possibly the best tip that could apply to each and every rider is:     When you begin lessons or go to a motocross school you are telling the world that you are going to change who you are as a rider.  Changing who you are as a rider is the first step to becoming an expert rider.  It is the beginning of a long road of scrutinizing your riding and constantly looking for ways to change and improve.  Changing things like your style or form, your timing, the way you look at the track, and the things you may just not be comfortable with is a job.  It is your job.  When you are in school you are exposed to a certain criteria, and if you absorb a certain amount of this information, you are moved on to absorb more.  This happens in Motocross schools as well, but in motocross you are expected to put the information to use in an environment where the stakes can be high.  Therefore,  it is sometimes easy to shy away from practicing difficult or uncomfortable techniques that will ultimately bring you more success as a rider.  As a matter of fact it is quite common for riders to go back to doing what is easiest for them. This defeats the opportunity to progress quickly.  These riders are falling down on their job.  No one said it was easy and I definitely wouldn't say that either.  What can be said is that the rider with the patience to slow down and continously practice what he has learned and continously look at his riding from an outside perspective is the rider who will progress at a quicker rate.  Odds are great that if you are not making changes you are not progressing.  You are in a sport like no other, and it is a blessing.  Good Luck!
		Here is one for us all:   It is very likely you have heard that your front brake is 70% of your stopping power.  You probably have also heard that you can go faster longer if you can stop or slow down better.  Going faster longer is very valuable when it comes to getting around the track quicker.  I know most people have heard this information and yet I watch MOST riders continuing to race without truly being comfortable with aggressively using the front brake.  As a matter of fact some riders will not even reach out for it while practicing under the watchful eye of their instructor.  I will agree the front brake can get you in trouble if used improperly.  This is why you need to instinctively reach out for the front brake every time you slow down.  Whether you squeeze it hard or not, you need to program yourself to maximize its use.  After telling riders this, I have noticed that the importance of the front brake still doesn't seem to register.  Let's look at it differently.  Some  privateers will spend about $1000 per pound to shed weight off of their race bike.  I would guess that your front brake assembly weighs between 3-5 pounds(maybe more).  This is equivalent to $3000-$5000 worth of lightening up a motorcycle.  I have never seen a rider take the brake off to save weight.  As a matter of fact they usually go with larger rotors that may weigh more.  The longer you wait to push your front braking ability the longer you wait to go fast.  Motocross, there is no other.  Good Luck.