I am burnt out

Please no judgement, I’m looking for constructive feedback on how to effectively and efficiently deal with the independent stage of 2.5 year old twins. Why do I have to repeat things 500 times a day PER TWIN only to hear “no me waaaaannnt to” in response followed by a flailing and flopping tantrum. Each time. I end up yelling every day multiple times a day and I feel like crap about it because I love my children to pieces. But I am human and can only handle so much! It is not even like escaping to the bathroom for a few mins for a mini break is an option without them banging on the door and fidgeting with the door knob. Omg. And deep breaths only go so far when you have little people shrieking in the background. Losing my sanity if I haven’t already lost it completely. I don’t want it to be this way but it’s so FRUSTRATING. I know I might be seeming a little childish but I feel so broken down. I need some feedback on what to do