The answer mostly depends on what you define "enough" by. In this context I take it to mean enough to prevent further ecological damage from plastic waste. While one country may have an amazing, comprehensive and nation-wide recycling program, the next may have none at all. While reducing plastic waste is certainly a good thing, I feel the only thing that would be "enough" would be to eliminate it.
Plastic is being produced, and used, in great quantities, every day, in most places around the world. Plastic is not biodegradable and takes centuries to break down. This damages the environment in many ways. Although there are many different types of recycling programs in place to help lessen the impact on the environment, they fall way short of the goal of combating plastic waste. There is simply too much plastic being produced and used. And, many recycling plants are limited in the amount and type of plastic they can recycle. More recycling centers need to be built, and consumers need to be educated on the dangers of plastic disposal, the best ways to recycle the product, and alternative products to use.
There are so many products, especially bottled water, soda, and milk that use plastic to package their products. An average household empties 1000's of plastic containers each year, only a fraction of them are re-purposed or recycled. If recycling programs were readily available, especially in smaller towns, conscience minded consumers would keep more plastic out of our landfills. Perhaps fundraisers could include gathering recyclable plastic - this would be another way to raise awareness about plastic waste.
There are many documentaries that show the destructive effects plastic waste has on the environment. Birds often eat plastic pellets formed from the ocean tide, which eventually kill them. Microscopic particles of plastics are present throughout the oceans and collect in the great gyres. Beyond the obvious environmental damage, the greatest cost of plastic waste may well show itself in time, through health effects microscopic plastics may have on us - which are sometimes present in seafood.