I am a diver that hasn't SCUBA dived for several years. When I was actively diving we had a "Golden Rule"; never ever dive alone, for any reason! Approaching your anchoring spot at dead slow ahead and directly down wind, come to a full stop and lower your anchor. Let the wind take you back while you pay out your rhode. When you reach the end of your scope, go to reverse at idle and it will set. If you didn't drop the hook on grass or rocks, you will be fine. This has ALWAYS worked for me and I've been doing it for over 40 years. Have a fun safe trip!