Paradise Lost is sometimes Heaven found.

Rejection Is God’s Protection
When someone rejects or breaks up with you, it may be a blessing in disguise. The person was not right for you. Or maybe you would have eventually been miserable with them. Now the door is open for someone else much better to come into your life.

Stay positive. Sometimes you don't even realize you're blocking your own blessings by thinking negatively and holding on to the past. Learn to let go.

The closing years of life are like the end of a masquerade party, when the masks are dropped.

Say they who counsel war; ‘we are decreed, Reserved, and destined to eternal woe; Whatever doing, what can we suffer more, What can we suffer worse?’ Is this then worst, Thus sitting, thus consulting, thus in arms?
What when we fled amain, pursued and struck
With Heaven's afflicting thunder, and besought
The Deep to shelter us? This Hell then seemed
A refuge from those wounds. Or when we lay
Chained on the burning lake? That sure was worse.

Son of Heav'n and Earth,
Attend: That thou art happy, owe to God,
That thou continu'st such, owe to thyself,
That is, to thy obedience; therein stand.
This was that caution giv'n thee; be advis'd.
God made thee perfect, not immutable;
And good he made thee, but to persevere
He left it in thy power, ordain'd thy will
By nature free, not overrul'd by Fate
Inextricable, or strict necessity;
Our voluntary service he requires,
Not our necessitated, such with him
Finds no acceptance, nor can find, for how
Can hearts, not free, be tri'd whether they serve
Willing or no, who will but what they must
By Destiny, and can no other choose?
Myself and all th'Angelic Host that stand
In sight of God enthron'd, our happy state
Hold, as you yours, while our obedience holds;
On other surety none; freely we serve,
Because wee freely love, as in our will
To love or not; in this we stand or fall:
And some are fall'n, to disobedience fall'n,
And so from Heav'n to deepest Hell; O fall
From what high state of bliss into what woe!
--Archangel Raphael to Adam, Paradise Lost Book V