Prayer and Supplication

Well it has certainly been awhile since I was on here. There is not much to tell. I started a new job which I like. Its not the best job in the world, but it pays the bills. It has also been helping me establish a good sleep schedule. I have to be up at 5:30 and I go to bed at 10:00.
On another note, Michael and I started our second round of Clomid today. I am not thrilled. I never thought I would need to be on any kind of fertility drug. I dont understand it and I probably never will but what I am trying to learn is what God wants me to learn. I dont know what that is yet. I happen to be a member of a ladies forum and we were on a conversation thread on asking God for things. Is it selfish to ask God for a child or not? I did some searching, and what I found is in the book of Philipians chapter 4, verse 6:
Be careful for noghti; but in every thing by prayer and supplication with thanksgiving let your requests be made known unto God
And the peace of God, which passeth all understanding, shal keep your hears and minds through Christ Jesus.
This tells me that we CAN go to God with our requests. It also tells me in the beginning of verse 6 that we are not to worry: be careful-for what? for nothing! We are to not worry, but make our requests known to God. Continuing on in verse 8:
Finally, bretheren, whatsoever things are true, whatsoever things are honest, whatsoever things are just, whatsoever things are pure, whatseever things are lovely, whatsoever things are aof good report; if there be any virtue, and if there be any praise, think on these things. Thos things, which ye have both learned, and received, andheard, and seen in me, do: and the God of peace shall be with you.
I have often wondered why these verses come one right after another. We are to make are requests known to God in prayer and then we are told to concentrate on these things as long as they are honest, just, pure, lovely, true, and of good report. And at the end? Peace.
In Ephesians chapter 6 verse 18 we see prayer and supplication again:
Praying always with all prayer and supplication in the Spirit, and watching thereunto with all perseverance and supplication for all saints.
I looked up supplication in Easton's Illustrated dictonary and I found it to mean beseeching the Lord or pouring out the soul to God. Its not just a simple prayer. Its fervent! A quote from this dictionary says this about prayer:
prayer must also be offered in the faith that God is, and is the hearer and answerer of prayer, and that he will fulfil his word, " ask and ye shall receive" and in the name of Christ.
I hope that this helps to understand a little on how one must pray. I hope that I can start to pray more fervently and with more faith. I want a child so desperatly and like Hannah, I need to make my request known to God.