If you really want to jump start your skiing and take it to a whole new level the best thing would be to go ski with a pro.  I don't know where you are located but if traveling to the southeast doesn't sound economical or very fun (HOT!!), check to see if a pro is coming near you to do a clinic, or organize one for your area yourself! You are at the best spot in your skiing to get some in depth, in person coaching.  This will give you some understanding of the fundamentals and allow the coach to make sure you've got some concepts down.  Spend a little cash now, save yourself from banging your head against the wall for the rest of your life.  From there I would take it to online coaching where you can get "continuing education". 
I recommend this process specifically for skiers at your ability level, where you will be learning a bunch of new fundamental concepts pretty quickly and will want to make sure you have a solid understanding of these fundamentals.  You can def. start video coaching now to get you on your way and then ski at a ski school or clinic as soon as time and money allow.

The biggest thing you can do for your skiing is to get out of your box.  That is why a pro coach is highly recommended.  Listen and ask them questions and have an open mind.  You are not getting coaching to get a quick tip but rather to progress your understanding of the sport.  The more you understand, the less doubt in what you are doing.  Less doubt equals more confidence.  More confidence in combination with better technique equals more buoys.