Hey CG, I agree with the other posts that you should speak to God like he is someone close and very personal to you. And since you are asking about God's name in prayer, I assume you are called a christian.
However, I am reminded of a passage in the Bible, the book of St.John chapter 14 verse 13: "And whatsoever ye shall ask in my name, that will I do, that the Father be glorified in the Son".
And also in the same book, chapter 15 verse 16: Ye have not chosen me, but I have chosen you, and ordained you, that ye should go and bring forth fruit, and that your fruit should remain: that whatsoever ye shall ask of the Father in my name, he may give it you.
The emphasis is mine. These are two of a few scriptures where asking in Jesus' name is recommended. Now all of the above depends on if you are indeed called a christian and if you follow the bible. I hope this helps to answer your question.
Shamms