Missing me time

Is there anyone else out there that misses taking a shower? Eating? Using the bathroom? I’m breastfeeding my 4 week old and it literally takes up my whole day! I’m blessed to have her in my life but I am really struggling with finding just 10-20 minutes for myself throughout the day because she screams each time I put her down for even just a few minutes. Is there hope it will get any better? Am I selfish for wanting a few moments to take care of myself? Anyone else out there feel me?