Crafting items, am I doing it right?

So, I’m at the point of nearly finishing normal monoliths, and already finding that pretty much any rare item now seems like trash, because they have limited forging potential, and you can’t craft the affix beyond t5. (Is that right?)

So I’m now basically just looking for exalted items where there is a t6 or t7 affix on the item that I want, and hoping I can change the other affixes (if they are things I dont want), using Glyphs of Chaos.

Is there a better way of getting high tier affixes on items you want ?

Tier 7 affixes start dropping in 90+ areas so you will want to do your farming primarily in those monoliths or higher.