When a JW discovers that the religion is no longer worth pursuing, there are some dramatic life changes that need to be made to fill the void. Being free is euphoric, but it can become stale without meaning in life. All of the suggestions above are helpful. I might add that immersing oneself in volunteer efforts to help others is also essential.
As a JW, you may have felt (mistakenly) that you were doing something to help others, and that no doubt brought you satisfaction. Now you have the opportunity to actually start devoting some time toward that effort.
Personally, I find that it is therapeutic as it re-grounds me and connects me to the community. And, there is no shortage of ways to genuinely bring relief others.
I started by doing volunteer roadside cleanup. This helped me build some relationships, and I branched out to help the elderly. This proved to be what brought me the greatest satisfaction. For the first time in my life, I began to feel that I was spending my energy in meaningful ways. I hope this helps.