So you want to improve lyrically & flow wise.
Buy a mini dictionary you can whip out during work and read through it don't stress yourself trying too much in one day instead set a number of words to learn everyday and you`ll improve quickly.
To improve your speed,delivery flow etc.
What helped me out the most was to simply rap-a-long with my favorite`s.Don`t rap-a-long to soulja boy because you will fail like him instead choose some moderate to high skilled rappers and listen closely to their rhymes and heck even google their lyrics and make sure you nail those multi-syllables that way you get used to them.
Another technique is to simply try to write ATLEAST 1 verse everyday and like many great things,The path to getting good is practice so try to freestyle when you can and make sure your minds at work.
Reading also helps you improve a lot aswell.
Hope i helped =)
[CENTER]BOOM BOOM BAP<RANDOM SYNTH>[/CENTER]
[CENTER]There i made a beat:D[/CENTER]