That's a very interesting perspective neeva. You are spot on with many points you make in terms of having to adopt to a new world or society so to speak.
If you're entire life has always been with the JW's then I can see where the difficulty lies. Your entire social strata revolves and has always revolved around the JW's.
Don't take what I'm about to write personally. And if you are offended, I apologize, however, I need you to be aware of something that perhaps you are not realizing.
Your entire life has been either directly or indirectly dictated to you by being a JW. Your thinking, your speech, your dress, your grooming, your friends, yours jobs, your hobbies, your spare time, your eating habits, your entertainment, your family life, even the kind of pets you own. Being a JW, you have ceased to exist and your freewill has been stripped away. Now, you may be thinking, "heck no!" "I choose to do what I want to do!"
Not so neeva. Think about it friend. You said it yourself: "So many gave me the advice to either leave or at least fade from the witnesses. But I feel way too lonely to do that. I am 36 years old now and meeting new people at this age is getting harder and harder."
My sincere and humble advice to you is: Keep all the good that you learned and trash the rest, but get out there in the world and live! Experience the beautiful aspect of life! Experience what it's like to get up on Saturday morning and do as you please! Redo your entire thinking and move it!
The other choice is to continue living in the world that has already been dictated to you.
I wish you the best and hope you can experience being free mentally and physically.