Progressing in any discipline takes time and consistent effort. The number I've seen bandied about is that to become an "expert" in most fields takes about 10,000 hours of study and practice.

On and off practice, 2 months of DJ and then stopping, you can't really expect to see much progress.

To really succeed at any serious discipline, you have to want it in your guts so thoroughly that you don't take "no" for an answer and if something doesn't work for you, you don't stop researching, experimenting, consulting with experts, and trying things until you find what works for you. You have to also really enjoy it in order to keep up that level of continuous commitment.