I sprained my ankle badly last summer but didnt seek treatment, can i do anything now?

I sprained my ankle in june of last year whilst on holiday with a few friends, i went into mild shock (not being able to talk, panting, not remembering) they took me back to where we were staying and then i kept weight off of it for as long as i could, i looked it up and the bruising was horrendous, it matched a 3rd degree sprain which i know no i pretty bad, i know i was stupid not to seek medical advice but i didnt want to ruin the holiday if it was broken or i had to go home, my mum had done it many times and told me not to bother, 4 days after when i got back from holiday i went to the hospital and he made me feel very stupid. I fear that the ankle still hasn't healed as i used to be able to 'crack' it to relieve uncomfort (probably not healthy but everyone does it!) now i get very uncomfortable feelings in my ankle and i cant relieve them, i have to physicaly twist my ankle, it aches alot, should i go and seek any attention or will it heal eventually?