Some people are a bit shy about praying with others, and sometimes they probably think about what Jesus said, "When thou prayest, enter into thy closet and pray to thy Father which is in secret; and thy Father which seeth in secret shall reward thee openly." (Mat.6:6) Well, there is a time for that, but there is also a time to pray together!
Sometimes it's important that you make your request known, not only to the Lord, but to others also, in order that they can join with you in prayer and manifest their faith and confess their dependence upon the Lord along with you. So never be ashamed to ask for prayer when you need it!
The Lord loves to give the answers and He has to give the answers when He sees we're united in love and prayer and purpose and mind and heart and spirit. "Where two OR three are gathered together in My Name, there am I in the midst of them." And, "if any two of you shall agree on Earth as touching anything that they shall ask, it shall be done for them of My Father which is in Heaven." (Mat.18:20,19) God's dynamics of the Spirit really operate amazingly! The Lord says, "When one can only chase a thousand, two can put ten thousand to flight!" (Deu.32:30)--So pray together!