It really depends on trade frequency. The higher the frequency, the fewer losing days.

The lower the win rate the longer the losing streaks.
A long term win rate below 33% is not recommended. Psychologically very hard to trade with a very low win rate like 20 or 25% as the losing streaks will be very long.
I am a systems trader and my win rate is 40% but i can still get a 25 trade sample with only 5 winners in it, in other words the short term win rate can drop to 20%. Then i might get 5 or more winners in a row and so the win rate is back towards 40%.
I have done lots of back testing which helps get through those periods.
Without this extensive backtesting i don't think i could trade a low win rate method over the long run.
Personally I don't even make money ever quarter, let alone every month or week or day. I have something like 80% profitable quarters. Which means i could even have a losing year as with 80% you can still get 3 or 4 losers in row.
You have to kind of just look at the average...over the course of a week/month/year, -- the big, Collective picture.
Instead of being obsessed with having a positive return everyday,Because that's all that matters...your average return everyday,
No one profits Everyday, to profit every day...is to imply you have 100% sure-fire prediction/trading/management skills. Which is, of course, ridiculous and fictional.
Showing a profit everyday, is not that difficult or impossible, however. -- If you are open-minded enough to realize a turn or reversal and ride that big wave, Boom...your relatively tiny loss has disappeared,
You can accomplish great things with trading, if you escape the matrix that has kept your mind and knowledge and goals and past experiences confined. -- This much I can tell you.
It's like a Rolex Platinum watch that retails for $40K
Man daytrading as a career can suck then since there's no predictability...
To the point the one huge win in that day covers the 10 small losses on the 10 other days? It's frustrating not knowing when income is coming in. Is it possible to make it more consistent without scalping: 70% winning days in the calendar year? Mine feels like 30% winning days yet I'm still up for the year

Would you daytrade in USA? Capital gains tax is a lot. I'm super stressed out daily but have been profitable