How to get rid of lice!!!

So I posted on here yesterday after finding crawling lice bugs in my hair and thank you guys for assuring and confirming it was lice 😓 I've never had it so I was totally unsure. 
Now, I live in a student apartment on a college campus. I literally don't have any friends or a boyfriend, I'm all by myself. I have roommates but we don't get along, cultural differences. They wouldn't be willing to comb my hair or anything like that they would just be disgusted. 
Today I did a lice treatment shampoo and then tried my best combing out my hair. It was HARD and I have long wavy hair that reaches my armpits. I would comb and comb a section and then rinse the comb until I combed all my hair. I still feel some itching though??? 
I have coconut oil rubbed through my hair and wrapped up in a shower cap right now because the lice shampoo and combing really dried it out and was rough on my hair. 
PLEASE help I need advice!
Should I keep my hair soaked in oil for at least two weeks to suffocate lice? How often should I lice comb my hair? What makes it easier to comb out the nits and lice? I have major tests coming up this week and next and I wish with all my heart I could get rid of this in a day but I know that's not possible. I am willing to put it the hard work and effort every day if there is a rigorous routine someone knows of to purge the lice 
You guys have no idea how muchI truly  and completely appreciate all you inputs 💛

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