Go through campaigns in sequential order then I’d say to build your main guardian for the more difficult stuff later on

Play the dlc in order I don't know when you last time played but there is also a lot end game content when you finish the campaign You can go do public events in distorted destination and gear up your guardian with sweet t5 armor ,portal is actually good place to get good loot ,look for featured raids and dungeons for they drop t5 armors in normal difficulty ,there is ton of loot you can chase Good luck out there also there plenty of utube videos made by content creator for returning players you can watch them

Unlocks. So you have a complete toolbox. Bought at Ikora... Europa Neomuna Pale Heart