The VA claims process typically takes a long time. This is due to various reasons, mainly because the system is often overwhelmed with applications. Each case is different, but it can take several months for VA to view your case and make a decision.
Some factors that affect how long it takes include the type of claim you filed, the number of disabilities you claimed, and the location of the field office where you filed your claim. You can potentially expedite your claim if you have a terminal illness, are 77 or older, or if you are homeless.