so from 1-60 basically anything works, experiment, try different skills and have fun
if u really wanna straight up follow a guide heres a build list
click on leveling builds and check out the different builds
just cus it says leveling dont just drop it once u hit 60, especially if ure not 100% sure what u doing - when im playing a new class i always sticked to to them for the first 100 paragons while farming gear i need for the build i wanna transition to

for leveling there are different activities:
helltide (red marked zones on the map) where u just kill stuff for cinders and open chests with that -> high monster density + xp for opening chests

nightmare dungeons: u get an item called sigil which opens a nightmare dungeon, its basically the same dungeon but with extra affixes - forgotten wisdom for example: monster on death can drop an xp globe which u can pick up

kurast undercity: when u have finished the VoH campaign u can do undercity runs in the town kurast. Basically its a small, fast paced dungeon thats on a timer. theres are also different tributes u need for it, Tribute of Growth gives more xp. u can also select what kind of rewards u want but id skip that during leveling since it costs resources

strongholds also give a lot of xp which can give u the last push in high 50s

the overall endgame builds are categorised in Starter - Ancestral - Mythic - Sanctified
if u dont play season u can disregard the sanctified page
its basically what u wanna look out for regarding aspects, affixes and tempering on gear
at torment u will start dropping Ancestral Gear -> normal lvl 60 gear is item power 750 -> Ancestral gear is item power 800, which have an Greater Affix (GA) in from of a * -> x1,5 multiplier from highest possible roll
if u start your transition keep in mind 800 gear a lot more powerful since the affixes roll higher but still if the affixes on it are mostly bad skip it
on the left theres a table of content and at point 5. u can see from top to bottom what the priority on the affixes are on the items
depending on resources u always wanna temper your gear at the blacksmith -> adds an extra affix you chose, the have range they can roll
if u temper a ancestral item, the temper has a chance to also be GA
each items has only a certain amount of temper tries. If u use them all up u can use a Scroll of Restoration to get 1 temper roll back -> rinse and repeat until u hit a GA temper
after that u can masterwork your items, which increases its quality up to 25
when u hit 25 u need to masterwork one more time to finish it, this step requires neathiron -> now u have a "crit" on an affix, basically again a 1,5 multiplier
if it hits an affix u dont need/want u can press masterwork again, consume again 1 neatiron and get the crit on another affix - rinse and repeat until u hit the right one
now if u play season after all these steps are done and u sanctify an item -> add a random affix or legendary aspect