Around my house are just wrong christians

As I'm reading the Bible and be in the Psalm book of the old testament I guess I already know very much because I can remember many things I read altough I'm reading this now since months.

My mother searched for some christian communities where I could join. But I do not want until I finished the whole Bible. But the much bigger thing is that in my eyes they are all extremists who do it wrong.

In fact just behind my house is one: http://www.christusgemeinde.de/service/foto-impressionen.html

Also just around 2 kms away is another one:
http://www.junge-kirche-berlin.de/foto/index.html

But as I see the pictures under these links they are all doing it wrong. Their priests do not wear Efods and they do strange rituals all the time. They mostly just pray to Jesus instead of God as if Jesus would be God. Also they pray to him through crosses. But already in the old testament it has been strictly forbidden to use any kinds of statues or symbols. God hates that very much.

They also do not bring burn sacrifices as Mose told the people. They only believe in the last 20% of the Bible the new testament. But the first 80% the old testament they leave. They just leave it like it wouldn't be in the Bible. But the Bible is the whole book and its written in the old testament we shall not leave this path. Not to left and not to right. But they did.

I would never join this. I'm not saying that I would be a new prophet or something better but I think altough I did not read the Bible already full I already understand and follow it much better then they do.

They are also too focused on themself. For example the first link. The vietnamese christians have their own prayer and the germans also their own. But they never celebrate together. I do not believe that vietnamese can be christians anyway. But these so called communities are too much focused on themself and would never let somebody from the outside enter.

I do start to believe that its the best to stay out of any church and just pray to God by yourself. Do not leave God. But do any law written in the Bible and the Quran. He wants us to bring burn sacrifices in the old testament but these new-age christians do not. He also forbid to eat pork meat but on the pictures I see food which looks like there is pork meat on!

No wonder the muslims think the christians are wrong. Its because the christian communities do not follow the laws strictly but do pagan rituals and wrong prayers. They forgot the laws of Mose totally.