https://forum-en.gw2archive.eu/forum/professions/guardian/Guide-Hammer-and-Altruistic-Healing-gameplay
I also use 0/0/30/30/10 with full Knights. I would advise you should get all sorts of different armor and weapon sets for all occasions but Knights is a great baseline. If you do go Pow/Tough/Vit I would advise against Soldier runes and suggest crit runes to offset the lost Precision.
More than likely if you’re surviving and your party is not, it’s their fault