I was talking about current, the current would be limited by the potentiometer. Right?

I think i know why youre having problems here; in parallel connections the current divide evenly every string right? Not exactly

It only does so if the resistance on each string is equal (in the case of leds the forward voltage, what we all refer to as just voltage).

The current over each string depends on the resistance of on each string

Theres a formula for it, i cheated with chat gpt cause my high school books are long gone:

"To calculate the total current flowing through a parallel circuit with different resistance values on each branch, you can use the formula:

1/R_total = 1/R1 + 1/R2 + 1/R3 + ... 1/Rn

where R_total is the total resistance of the circuit and R1, R2, R3, ... Rn are the resistance values of each branch.

Once you have calculated the total resistance, you can use Ohm's Law (I = V/R) to find the total current flowing through the circuit. Just divide the voltage across the circuit by the total resistance to get the total current:

I_total = V_total / R_total

Where:

I_total = total current flowing through the circuit

V_total = total voltage across the circuit

R_total = total resistance of the circuit

Keep in mind that the current flowing through each branch of the parallel circuit will be different depending on the resistance value of that branch. To calculate the individual currents, you can use Ohm's Law for each branch:

I1 = V_total / R1

I2 = V_total / R2

I3 = V_total / R3

...

In = V_total / Rn

Where:

I1, I2, I3, ... In = current flowing through each branch

R1, R2, R3, ... Rn = resistance values of each branch

V_total = total voltage across the circuit

These formulas will help you calculate the total current flowing through the parallel circuit as well as the individual currents flowing through each branch."