But no matter how I adjust the potentiometer, the voltage did not rise.
How can I solve it?
Look here: -
The most obvious problem is that the enable pin (EN) is floating. Try connecting it to Vin as per the data sheet: -
Other potential issues?
- Why haven't you got 220 uF on the output like the data sheet suggests?
- What output voltage are you trying to achieve?
- What is SW1 all about?
- Why haven't you got the recommended input capacitance?