How can you join cricket?

If you do want to learn and play cricket then I strongly suggest you join a cricket club no matter of your ability. If you are still willing to learn and improve you should get 1 to 1 coaching. These sessions improve your skill dramatically. I go to these sessions and when I started I did not know how to even hold the bat. After a year I was chosen to represent my county and I still do.

So first join a club to get a feel for the sport and gain experience of matches then attend some coaching (but keep playing for your club!).