yeah, go into Spirit first: Blood Warrior, Empowered Renewal and Untamed Strikes are pretty good feats and teach from the get go that buffing and timing is the most important part (other than debuffing) of playing a BS. Important note: Activate Renewal BEFORE you you press the last direction of a combo, not in between. if you start the finisher animation before you activate Renewal, nothing will be buffed at all. After Untamed Strikes either go for Blood Warrior and Rune of Aggression (thus stay in Spirit tree) or get the Charge and start building your Internal Bleed and head towards Mani of the Forest. Also - other than the ‘standard’ build you posted, you should get poisoned hide instead of Ursine Onslaught, as you shouldn’t use Ursine Brawl that often when having aggro yourself, since it hits the same shields (right) as your Crush Armor combos (which you should use a lot, all / 3 best ranks available).
Level 21: https://joharaoc.eu/feat?link=v18_11d3a9843a9e83b3aa
level 31 no charge: https://joharaoc.eu/feat?link=v18_11d3b2193a9843a9e83b3aa3ae313aab03ae94
31 with charge: https://joharaoc.eu/feat?link=v18_11d3b21c3b2803b5a03bc403b6043b6663b3443b6c83b7923b4703b4d83b85c3bb143b8c03ac403b5383b9203a9843b72d3a9e83b3aa3aab03ad6a3ae943bbdc3b7f4
53 Rune of Aggression: https://joharaoc.eu11d3b21c3b5a03bc403b6043ab103b2e23b6663b1503b3443b6c83b4703a9843a9e83b3aa3ae313aab03ae94
53 Rampage: https://joharaoc.eu/feat?link=v18_11d3b21c3b5a03bc403b6043ab103b2e23b6663b1503b3443b6c83b7923b4703b4d83a9843a9e83b3aa
at level 70 both builds should look like this: https://joharaoc.eu/feat?link=v18_11d3b21c3b5a03bc403b6043ab103b2e23b6663b1503b3443b6c83b7923b4703b4d83b85c3ac403b9203a9843a9e83b3aa3ae313aab03ae94 (note: Rune of Grounding is a perfectly nice skill, but you wont meet many caster related enemies until you start Khitai or level 80 stuff)
also note: you can skip endurance of the bear and go for balance of nature right away; for playing with groups balance of nature is the go to feat