Can someone please help me with a question regarding anterior talofibular ligament sprain?

For the past few weeks, I've had this unbearable pain in my right ankle. I just thought it was because of how many hours I stand on my feet all day at work. I just thought it was just for a few days and then will go away. But it's just getting worse. I stand on my feet 5 days a week for 10 hours straight (hostess) I do tend to put all my weight on one side, I switch sides from left to right, right to left. It does get uncomfortable to just stand up straight with putting your weight evenly between both legs. I can't lean or slouch or anything. I recently joined the gym and this painful ankle is really stopping me from achieving the best workout. I foot always feels tight and cramped, but it's never swollen. I did some research about what part of my ankle hurts exactly and I came up with this 'anterior talofibular ligament' So....I am uming I sprined it or tore a ligament. I really cannot afford to see a doctor/podiatrist. I have no health insurance. I always elevate my legs when I get off work and at night when my ankle is really bothering me, I apply warm compresses. I am at loss for what this can be caused from, but I am uming it's from my job...standing all day and not having the money to get really really comfortable shoes. I just bought some dr scholls inserts but they really didn't help out much. Can someone please help me and figure out what this can be? Thanks in advance to all those who answer.