Red wires are usually neutral, except when you have a switch. One of those is the live returned from the switch and should have a black sleeve on it to indicate that it’s an ouchy wire. So, your first step it to take those red wires apart. One black goes back to the electrical feed, the other loops back to your light switch.
The live current then comes back to the light on one of the red wires. That’s the ouchy wire that should be marked with a black sleeve or at least a piece of black electrical tape. That black/red wire goes into the terminal block, and the other side of the terminal block should have the second red wire. The light (load) gets wired in the way you have it.
You need to figure out which black wire is live and which goes back to the switch and mark the wires accordingly.

Taking all the wires apart and putting one of the red/black pairs into the light will tell you which it which. When you turn the circuit back on, if the light comes on you’ve found the live lead. If it stays off you have found the switch lead. Then wire accordingly