I read through the whole song and noticed the rhyming scheme is a little inconsistent. I recommend working on that to make it consistent throughout the song. For instance, verse 1 rhyme scheme is X-A-X-A (1st & 3rd lines, or "X", don't rhyme; 2nd & 4th lines, or "A", do rhyme). So far, so good.
Then there's your little two-line tag at the end of the verse with no rhyming evident at all.
Chorus rhyme scheme is:
A-B-A-B X-X-X-X
1st & 3rd lines rhyme, 2nd & 4th lines rhyme, but second section doesn't rhyme (I don't usually count using the same word as rhyming, although technically I suppose you could. In a way. It isn't a rhyming word, though, it's the same word.)
Now the next verse rhyme scheme is:
A-X-A-X (opposite of the first verse, which was X-A-X-A)
and the two-line tag at the end of it again doesn't rhyme at all
The bridge is the same scheme as the second verse: A-X-A-X.
Further comments and suggestions are "in-line" in the song below with a wrap-up at the bottom:
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I’ve Learned So Much
Verse:
This is the end for us
Breaking our bond
After all those years,
Can’t believe your you're gone.
An acknowledgement for all the things you’ve done
I’m really blessed that you were there for me
Chorus:
I’ve learned so much from you
That I can be strong, alone
Even in times of solitude
I’ll be standing, on my own
Thank you so much, to you (doesn't make sense)
For accepting my mistakes
I’ve learned so much from you
And now, I guess, I should move on (something's missing in this line, I took a guess what it might be)
Verse:
Recollecting our story
Testaments of our friendship (What are "testaments of our friendship"?)
In our good times, it was glory (What is "it" referring to?)
It put us together (And again, what is "it" referring to?)
Lessons learned, not to name a ton (Don't understand "not to name a ton")
All the gifts you gave me makes make me smile
(Chorus)
Bridge:
Devastated of what turned out (Does this mean "devastated by how things turned out"?)
It infuriates me, too
But we need to move one on, no doubt
Just remember what we had
(Chorus)
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I think you painted a clear picture what you're saying in this song. For the most part, it's easy to understand the message.
Your format seems to be mainly a type of "free verse", which can be very effective for poetry but rather difficult to mold into a song. Structuring the rhyming scheme and rhythm patterns more evenly might be helpful when trying to formulate a melody to fit your words.
I find the words successfully evocative of the emotions accompanying a breakup after years of being together. I like how your protagonist manages to find the positive effects of the situation, even while being devastated and furious and obviously not wanting the outcome.
I hope something here is helpful to you.
Sincerely,
Vicki