My Jeep needs a new engine

Hi. My name is Stephanie. This past Monday (March 6, 2017) My 2002 Jeep Wrangler had a very loud ticking/knocking sound. After getting it looked at,, the diagnosis is not good. She needs a new engine and a new muffler (Has a big hole in it). My Jeep is the only thing in this world I own outright. Buying another vehicle is just not in my budget rigt now, nor is making car notes....again. Without my Jeep, I cannot get to work, to make money for bills, and especially to get my insulin for my diabetes. I live in the country and it takes me 50 minutes to get to work, very early in the morning. This is my only vehicle and not a "toy". I am beside myself, upset and feeling at the end of my rope. $2,000.00 will enable me to get the engine I need. The only money I have saved so far would pay for labor, so I at least have that covered. Any help would be so very appreciative, no matter how much you can spare. Asking for help is something I don't like to do, so this is extremely humbling for me. Please help if you can. Thank you for taking the time to read this.