My worst Problem.
I can't fit any lyrics on the composition that I compose.
So I have a question.
Does the composition courses have literature lessons?
What should be made first, The song or lyrics?
How do I make myself more poetic?
That, my friend, is like the eternal question: Which came first, the chicken or the egg? hehe
Like scottmc said, it really depends on the composition on which came first. One day you may be inspired by a melody that popped up in your head, and you ended up writing the main melody of the song, and added lyrics. Or you thought of a really nice line that would fit well in music. One of the exercises that I did at songwriting class (one time, at band camp LOL) was that we were required to create 5 song titles every week. Sounds trivial, but they can prove to be important one day. I still look back and they actually give me ideas.
You should also analyze songs. Look at the time signature, tempo, rhythm, song strucutre, etc. There are many different types of song structure, and can drive you crazy when asking yourself "what type of song structure should I write???". There's the "verse song" (most of Lionel Richie's are), then the Verse-Chorus song, and also those that don't conform to these (I'm sure I didn't list them all so have fun with Google).
As for being poetic, read poems

. They can provide you with ways on how you can write your lyrics, and make them sound "poetic".
And of all the forums that I ever constructed.
Nobody ever Answered this requests.
Give me Drum notations of Pop and examples of Drum beats.
How to add Guitar chords to MIDI.
Drum notations, that's a hard one. You can find lyrics, chords, and sheet music (best source is your local Guitar Center/Sam Ash stores). If you listen to pop music, you can imitate the rhythms. Listen to a variety of music too. You will find that a lot of pop music nowadays have influence from many different cultures (African, Asian, Hispanic/Latin, etc)
As for MIDI, you can invest in a MIDI keyboard to play your chords to a computer software. I believe there is a guitar that can input MIDI signals but, it's very hard to emulate the real thing. I would start with just chords, then notate what position you want that chord played on the guitar (look up guitar tabs, and how to write them). There a lot of MIDI programs out there, PM me and I can give you some pointers on recording software, etc.
How Do I form a Band?
My band would be composed of A Violinist, A cellist ,A drummer ,A rock guitarist, A trombonist ,A Keyboardist, A vocalist.
What type of band is that.
Networking is the best way. Some folks here have already provided suggestions such as local bars, your own school, etc. I found that working with other students can be very rewarding since you share the same goals. Look up "Open Mic" nights at bars/clubs in your area. Many musicians/composers will showcase their music there, so that's another good place to look.
Once you form some friends and associations with musicians, you can ask them to play for you. Some will ask for money, some will do it just for the pleasure of playing. Whatever your situation/their situation is, you need to work it out. Open Mic places will let you play for free (or for a fee), I'm not sure about it.
Good Luck!