Please help me find out how to arrange my office in the best feng shui way.

It really depends on the feng shui. The windows of this house are facing backwards, so the cabinets are placed on the side near the windows. It’s okay. Now your cabinet is placed on the auspicious position. It’s not appropriate to press the auspicious position!

The bed should be in the auspicious position, but your bed happens to be in the unfavorable position. Try to move your desk forward a little and occupy the middle area. That area is an auspicious position, so it is better to work there.

Your watch is placed very well. There is a wooden cabinet hanging there, at the entrance, so that the beam pressure can be changed. Hang a circular decoration on the door, and also hang one on the left.