Being only 25 miles out of Baltimore I would guess there are 50 decent jobs within an hour's drive. A lot of shops don't advertise help wanted anymore because of a lot of reasons.
The best/good way to get a job is to knock on doors. You pick an industrial highway and walk-in. You don't ask if they are hiring but ask to talk to the foreman/manager or owner. Then you lay your cards on the table. First off the interviewer will think this guy is out of work because he is a bum/got fired/is a poor worker/ is a good guy out of work. That you are working to seek a job is a plus. Can you get a letter from your last job? Shop owners watch out for each other and do call the other shop and ask if a guy /gal is an Ok worker. Not having a letter, then that is your first goal. You may have to take the $12 an hour job and tow-the-mark for a year to get that letter. Some owners/bosses don't want to writes a letter or tell you that because you don't merit one/good to ask that kind of person, So leaving a Job ask -> "Can I ask my next job application call you for a reference?"
QT: [No defense or aerospace stuff...] that statement put a dent/question in your chances because a machinist makes parts, not policies. Shops don't want attitude people, if a bad history, what? Politics, religion, opinions, discrimination are on-you-own-time not on clock time subjects/ not even on lunchtime. Making parts is the only subject on clock time or on shop property. The best workers spend very little time chatter boxing.
Your request here should add I am currently working, or not. (lay your cards on the table)
"I can be here on time every day, I don't have any bad habits, can turn a lathe thread, run a mill, read a print, push a broom."
You should have a basic/minimum toolbox, 1" micrometer, 6 or 8" digital caliper, some 6" C clamps, a combination square set, small solid square, a few parallels, 60* fish, yoyo, 12" adjustable wrench, pocket scale, set of thread wires, your own drill tap chart, machinist pocket guide. bargain brands Ok to start.
If you can never get a good letter or a verbal recommendation then your poor habits put you in the category that offers lower pay and fewer jobs, that is your choice.