Welcome. You are not alone. One way of leaving is through a fade. My fade started accidentally. I knew I had doubts,but I had no game plan as for how to leave.
I wound up going to a foreign language congo because a brother kept bugging me to come over. Everyone in english presumed me to be at the foreign language hall. I'd miss meeting here and there in Spanish and I'd tell them I was visiting with friends in english. Same with eh assemblies and conventions. "Oh....I'm going to english/spanish next week" etc With the language barrier people forgot about me real quick in Spanish. The english congregation just assumed I was gone for good.
Before you know it I was out. I'd strongly suggest using the 'serving where the need is great' in a foreign language congregation as a way to fade if possible.