Well, of course there is nothing like Harry Potter! But there are some fantasy series (usually shelved with Science Fiction) that deal with young people struggling to learn magic or to control their magic powers. Here are some I liked

 

Rhapsody (Book 1) Prophecy (Book 2) Destiny (Book 3) by Elizabeth Haydon

Any of the Valdemar Series by Mercedes Lackey (there are a TON of them- most written in groups of 3)

The Magician series by Raymond E. Feist. First one is Magician: Apprentice

 

Also, if you don't mind venturing into the children's department, there are some terrific series competing with Harry:

The Artemis Fowl series by Eoin Colfer

The Spyderwick Chronicles by Hollly Black

The Bartemeous Trilogy (only the first 2 are published)

Eragon by Christopher Paolini

 

Hope that helps!I love 'em all!

Perhaps my post too late.....  

 

but try Robert McCammon's A Boy's Life.....

 

quite an interesting read and the forward alone changed my life......

about losing the magic of your childhood...

 

published years ago, but it is one of those books I hung onto and never let go..

 

(will pre warn you though, very hard to get past the first couple of chapters,

then too hard to put down)