Hope this helps and there will be local boatman who can advise on local factors.
Anchoring- key points:
1. Have the right TYPE of Anchor that serves your area of sea bed. I use a Bruce as it is the best for the area I fish. I carry a spare folding grapnel anchor
2. Right size anchor for the boat. I have a 20ft Orkney Pilot House . I use a 5kg anchor which is the minimum (could use a 7.5 kg) but use extra long chain.
3. Length of chain to Anchor - must be at least the length of the boat but I have 30ft of 8mm to 5kg Bruce instead of a heavier 7.5kg.
4. Anchor rope - min 12mm. Depending on conditions of wind & tide plus type of sea bed. I allow a 4 x depth of water. Anchoring in 40ft requires 200ft. Sometimes les or more is needed.
5. Anchors get stuck - especially in the area where I fish where there is loads of debris on the sea floor plus natural rocks etc Much from D DAY!
if you are on rough ground put a "TRIP" on it. Recovery of a stuck anchor in bad conditions is fraught with danger.
6. Anchor drop & retrieval is also dangerous depending on your set up. Anchor going over the side with the anchor rope around a leg - may not be a happy ending.
Recommend you read this by Neville Merritt - he is fishes my patch but is really experienced and he gives some good tips in this book he wrote - free download. p.70 onwards covers anchoring but the whole thing has lots of advice from an experienced small boat man
https://www.boat-angling.co.uk/wp-content/uploads/2016/08/Angling-Boats.pdf