I've figured it out! So, once your sim is glitched, you will want to get a random stranger (that you don't mind killing off) & do testingcheatsenabled true. After that, shift, click on them and choose 'Add To Active Family'. Once you've done that you'll want to get him home ASAP and do resetsim {Sim'sFirstName} {Sim'sLastName} on your glitched sim so they are on your home lot. Once both sims are there, you'll want to make the new sim talk to the glitched sim. Now your glitched sim should be fixed, and your new sim will become glitched! Now just starve him with cheats. Boom. Fixed.