Tenant Rights in Tennessee - landlord keeping entire security deposit

On mobile so apologies for formatting. Has anyone dealt with something like this in Tennessee? I'm not sure what my options are.

landlord keeping entire security deposit. I've been dealing with this for about 6 weeks now and the situation isn't improving.

I have been renting for 6 years. My monthly rent is $2,262. I have a written lease.

Should I hire a lawyer for this or try to handle it myself?

Ok so nAL, but from what I've read, you should send a written demand. But honestly you should verify this with someone who knows your state's laws fr fr.