Is there anything I can do to speed up the healing process?

Yesterday I hurt my left foot pretty badly on the elliptical machine at my apartment complex’s gym – I was in the process of adjusting the stats and timer before I started working out and took a wrong step and got my foot caught in front of the pedal thing, which was still in motion, and it crushed it right up against the machine. I’ve been using the R.I.C.E. (rest, ice, compression, elevation) method since yesterday and the swelling’s gone down a lot, but I’m not able to walk on my foot as it hurts if I put too much pressure on it. I know it’s not broken because I can wiggle my toes/move my foot and ankle around, and I don’t have constant pain (it really only hurts if I put pressure on it), but it’s still swollen (though not as much as yesterday) and feels very uncomfortable. I can’t go to the hospital because I don’t have health insurance and can’t afford to pay the bill out of pocket, and I’m pretty sure it’s nothing major that won’t go away on its own in due time. However, I have a very important follow-up interview for my dream job on Monday and I really don’t want to miss it or go in limping – the job requires lots of walking and standing up and I don’t want my interviewers to write me off because of a silly injury. It’s been a really long and time-consuming process to get to this stage of the job interview and this is the final step and it would be a terrible shame to have this injury hinder my chances of getting the job. Is there anything else I can do, short of going to the doctors, to ensure that I can walk on my foot by Monday? Any help would be greatly appreciated!! Thank you all in advance!