Ecstasy hits me fucking hard, any adive? (20 year old female)

I am a 20 year old girl. Ecstasy was my first ever drug. I've had truffles, 25ibome, nothing more so far.

I've taken about 15 pills about now. I have pretty good pills. Purple Black Berry's. These are 250mg. I used to take a heart shaped pill with only 180mg in them in the very beginning, and i've had A Y2K (pink) pill twice, which also contained 250mg. I tripped so hard on these that i saw people with 4 eyes.

I always break the pills in half and start off with half a pill.(Tried a whole pill once, wasnt that great).

My problem is, i always need to sit down for 20 minutes because it hits me so extremely hard. I cannot walk, my eyes start wiggling extremely bad and i start seeing things double. Whenever i talk, it feels like there is glass bowl around my head, stuff sounds really hollow. I never feel sick, but i do burp a lot and gag, i've never puked.

I find this really annoying, after that has passed i have a very steady and fun roll that lasts pretty long. I never have issues when i take the other half. Feel just fine.

Now, i am used to this and make sure i go outside whenever i get my come up. But last time i took only a quarter of the Black berry pill, it hit me less hard. But i felt very weird. I didn't like the busy streets, i just wanted to sit down or lay in bed. It didn't feel right. On the way back home on the train, i wanted to close my eyes, but that didnt feel right, whenever i opened them, it didnt feel right either.

I also started getting cold, and then hot again. I didn't feel sick or bad, but also didn't feel great. Just very off. Is a quarter not enough to make me have a good roll? But half a pill hits me too hard.

I wonder what made this happen, and why it hits me so hard. Is there anything i can do about this?