my tooth is broken in the gum. i bite down on my inner cheek. its swollen and has a lump

Have you already consult and seek an advice from a dentist? Where are you located? If it's Rockville then I recommend you my personal dentist Dr. Ziomek. She can provide you the dental procedures that you might need depending on  the diagnosis of your condition. You may check out: http://www.rockville-all-smiles-dentistry.com and check her profile.

Hope this helps.