Boost converter PCB layout
Let's Discuss Step by Step,
1. Circuit Diagram

For any Buck or Boost converter use few Bulk capacitors in parallel to reduce ESR.
Use Decoupling MLCC or PF capacitor parallel to Bulk Capacitors.
In P3 connector use the remaining pin as GND.

2. PCB Layout

Never use the steep bend of any data or power line.
Try to minimize High current loops.
Use Ground Bottom Plane, and Thick Positive line.
Keep Mosfet Drain Line away from Inductor to minimize the noise.
Place Power Mosfet and Diode on one of the edges of the PCB so that later you can add heat sink if needed.

Regarding your Current and Voltage sensors, post the issue or discuss here, we will solve the issue.
Best of luck