Congregational prayer

Congregational Prayer and Raising Hands in Prayer

As-Salaamu 'alaykum wa rahmatullaahi wa barakaatuhu. Dear Brother, I am a practising muslim living in Bangladesh. I am 19 years old. Alhamdulillah recenly i started growing my beard. I didn't know that it is prohibited for a muslim man to shave his beard.After reading ?Sifatu Salat-n-Nabee (saws): The Prophet's Prayer (saws) From the Beginning to the End, as though you see it? and the book named ?The Description of the Prophet's Prayer By Abdulaziz Bin Baaz? I found out that in our country people are used to pray in a different way. I mean they only raise there hand upto the ear at the beginning of the prayer I mean the Hanafi Style. Now as I am praying according to the Quran and the Sahih Hadeeth do I need to attend the congregational prayer 5 times a day because people in our country are full of misconception,innovation and superstition and they think I am praying like the followers of Mirza Ghulam Kadiyani. According to many people in our country the Ahmadiyyas raise their hands inside the prayer. They look at me angrily like as if I have done a great sin because I don?t pray like them. I used to wipe my neck while performing ablution but now I don?t. When I asked the Imaam of our mosque about raising the hand at the beginning of the prayer, before bowing while saying Allahu-Akbar, while standing from bowing and after standing from finshing the second tashahud. He said the prophet used to do it sometimes so it is not necessary to do it in every prayer. That is why I don?t like to attend the congregational prayer in the mosque except for the Friday prayer. Am I doing something wrong by praying at home because of the above mentioned reasons?