I cannot get my toddler to bed anymore, does anyone else have problems with this around 2 years old?

My daughter is approaching two years old and for the last month, she does not want to go to bed at night. Sometimes I even have the same issues with nap time. I know she is tired because she yawns, rubs her eyes, throws temper tantrums, etc. I have tried everything. From baths, rocking her in the glider, dim lights, reading bed time stories, rubbing her back, humming, pacing her bed room. I don't try these all in the same nights but I have tried each one a few nights in a row to see if something would help. I block out the outside lights, run a fan on low, and she has a night light. I have to run the fan because we live in a very small house and the walls are like paper so you can hear everything. My husband and I stay quiet. I am just at loss. She fights sleep every night and even gets up at 3 am to play. It takes me over an hour to get her sleep every night and most nights I leave her in her crib to fall asleep after a half hour of trying to get her to calm down.. She talks, bounces, kicks the sides, and plays in her crib all the time. I have even tried early bedtime around 8:00 and later up until 10:15. I just don't know what will make this kid sleep without a show down every night. She doesn't cry or carry on hardly, she just will not go to sleep. I have tried changing her naps and even tried days without a nap but to no avail my child will not cooperate. I really hope this just a phase. She was a great sleeper until a month or two ago. This wouldn't be such a problem but I am in school and take online classes, night time is my school time. I cannot do my work when she is up during the day for obvious reasons with a toddler running around. Any advice experienced mamas?