I have to analyze a Shakespearean sonnet, and I understand the meaning however i'm having difficulties identifying similes, metaphors, and personification in it.

"

When in the chronicle of wasted time
I see descriptions of the fairest wights,
And beauty making beautiful old rhyme
In praise of ladies dead and lovely knights,
Then, in the blazon of sweet beauty’s best,
Of hand, of foot, of lip, of eye, of brow,
I see their antique pen would have express’d
Even such a beauty as you master now.
So all their praises are but prophesies
Of this our time, all you prefiguring;
And, for they look’d but with divining eyes,
They had not skill enough your worth to sing
For we, which now behold these present days,
Have eyes to wonder, but lack tongues to praise.
"

All their praises are but prophecies of this our time,all but u prefiguring. What does the poet mean here