Struggling with Sleep and Mania

i got off my meds back in november, and since then although my mental health has had ups and downs, i haven’t been majorly depressed or manic. this week though, i have barely been able to sleep. the 30 mg i once took to make me fall asleep, that were effective, are no longer working. last night i took 50 mg just to be able to fall asleep and i still wasn’t able to fall asleep until 1:30. lately i’ve been unable to get adequate sleep. also yesterday i was working out and then my energy got so low after that and it was like i couldn’t gather my thoughts. then after a bit all of a sudden my mood flew up and i ended up getting a LOT done. i was mentally tired but at the same time i felt like i could do anything and everything. i think i’m becoming manic again and the thing is i was talking to my roommate about it this morning and she was saying how she thinks it is partially controllable and that maybe if i don’t use my phone at night i’ll be able to sleep like no girl that’s not how it works. going off my phone at night isn’t going to make the chemicals in my brain causing me to feel this way go away. i’m so frustrated. idk if im becoming manic again but do i need meds again??? i used to do multiple all lighters or only get like 4 hours of sleep in 48 hours and i don’t want it to come to that again. yes i got a lot done in those periods of time but i still felt so alone.