Being charitable to OP, I think their advice is to look after your health before hyper focusing on your sleep. I’ve had a similar experience - the better I care for my body the better my sleep is (and the opposite is a self reinforcing cycle). For me, personally, CBT and therapy helped hugely with the feelings of overwhelm I got from feeling like I wasn’t getting enough sleep and gave me the tools to deal with the fact that I’m not going to fall asleep at 11:30 and wake up at 7:30 like I would like to. It’s not perfect, but what is?