朱莉娅系统 (The Julia System)

I named it the Julia system because I wanted to name my granddaughter Julia. But my wife said no. So, this is second best.
Criticisms welcomed, because I know that there is something wrong with this system, but I can’t put my finger on it.
Nothing needed on your chart. Direction is irrelevant.
Buy 1 unit of any pair. For example, EUR/USD. Put a RR of 1:1.
If the pair hits TP, start again.
if it hits SL, add a unit, then renter. So now you have 2 units. If you lose again, add another. So, it’s now 3 units. If you WIN, go down to 2 units, and keep doing this until you get to 1 unit.
OK. You get the picture. But try doing this system, but when you enter the transaction, enter a long and a short at the same time and control it like 2 independent trades. Your losing position will will be mitigated by the winning position.