Find a gym that will train you in a striking art, a grappling art, and basic boxing, eat lean protein and complex carbs (which you've probably already been doing in order to lose so much weight) and you'll be well on your way.
Welcome to the forum, BTW.
^^This is a helpful post. Very true. You need to find a gym that will train you in all aspects of fighting and not just one specific discipline!
Welcome to the forum from me as well!