You'll get different answers depending on who you ask, but personally, I believe that to walk with the Lord
in truth, you must be connected to a church. Why? One reason is found in
Romans 12:4-8:
"Just as each of us has one body with many members, and these members do not all have the same function, so in Christ we who are many form one body, and each member belongs to all the others. We have different gifts, according to the grace given us. If a man's gift is prophesying, let him use it in proportion to his faith. If it is serving, let him serve; if it is teaching, let him teach; 8if it is encouraging, let him encourage; if it is contributing to the needs of others, let him give generously; if it is leadership, let him govern diligently; if it is showing mercy, let him do it cheerfully."
Each member in the body of Christ has a gift and a purpose. We need each other and the gifts given to each one by the Holy Spirit. Together, we comprise the body of Christ. In this way, you are also less susceptible to false teachings being passed on as biblically sound doctrine. Do not be deceived, you cannot walk alone in the times that we live in. You have to consider the source by which you would get your beliefs if you don't go to a Spirit filled, bible believing and teaching church.
Also consider
Hebrews 10:25:
"And let us not neglect our meeting together, as some people do, but encourage and warn each other, especially now that the day of his coming back again is drawing near."
Hope that helped.