About four years ago, I retired from a job where we were very supportive of each other. We had to be, and we put a lot of trust in those who worked beside us. Our fellow employees were like family and we would give our lives to save our partners. I worked most Sunday's and attended church as much as I could. It wasn't very often.
My faith in God is strong and I have been praying for His guidance as to where I belong in today's church, or if I belong there at all.
Being very supportive of one another can be a very good thing anywhere, but especially among God's people. The question will often come up: Where are they? A good place to start looking is where Jesus is:
"For where two or three are gathered together in my name, there am I in the midst of them" Matt 18:20
Just what does that mean and where can you find such a place? Sometimes it can be right here on 'Talk Jesus', but we do like to find a better place where we can see people with the natural eye and hear them with the natural and touch them with natural fingers. But finding such a place is dependent on God and on your prayers. You apparently already know that so don't let me or anyone else get in your way. The verse I quoted suggest one thing that really must be anyplace you decide to "gather" regularly.
It seems to me that everyone is walking on eggshells and are very guarded. I get the feeling that everything is superficial.
Too many places your words are too true. There are better places and likely one of those is where God will lead you. However, let us not second guess God or try to do the leading for Him. We need to have our hearts open to the sound of His voice so as not to be misled. There are many other voices beckoning to us.
People in the church have less care for each other than they did in my work.
Again these words are too often the truth, but remember what God said to with Elijah when the man, a prophet of God, thought he was the only one who was still faithful to God:
"Yet I have left me seven thousand in Israel, all the knees which have not bowed unto Baal, and every mouth which hath not kissed him." I Kings 19:18
There still are people and places where some are worshipping God in "Spirit and in truth"
Is it possible for someone to be institutionalized or conditioned to a point that he is better off worshipping and praising God on his own?
Yes, but don't be quick to make a decision in that direction without consulting God about it. He may have something more specific in mind for you:
"Ask, and it shall be given you; seek, and ye shall find; knock, and it shall be opened unto you:
For every one that asketh receiveth; and he that seeketh findeth; and to him that knocketh it shall be opened." Matt 7:7-8