Roulette Hypothetical question

Let's say I flat bet something like an Even Chance, approximately half of the numbers, all spins, for about 55,000 bets.
The selection is ending with over 33,000 units net loss, is it correct to assume that by selecting the other half I'd have gained 33,111 units net?

With red and black and any other EC this kind of profit/loss is not possible because their difference cannot be so high after so many bets, but my selection generated this profit by betting on average half of the total numbers, it varies from 14 to 23 numbers but most of the time are 18 to 19 numbers being bet.

18 numbers for 5,483 bets are sufficient total to determine whether your selection has an edge, I did this total tenfold, 10 times more and only flat betting, the max DD at any given time was 951 units.

I've used 3 months of results, 92 days, each day had on average 600 bets (from 500 up to 700), all of them from B&M casino (single 0).

So my conclusion is that what I've stubble upon was not by accident, could not be just luck after that many bets, thus if you can find a consistent loser it's as good as finding a consistent winner!