Wish someone had told me how it is

I wish someone would have told me how mentally, physically, and emotionally draining parenthood can be, i knew about the financial part of it but never the other part. I wanted one child, but I got pregnant with twins in the first years I managed it even though most of the time i was doing it myself . We're in year 5 now, and I'm just mentally and physically drained , not recognizing myself in the mirror anymore , just going through the motions and routines every day. I wish someone would have to me how difficult being a parent is, especially without real having support and doing it mostly by myself.