Framing your current struggles as future growth
I'm not sure whether this is philosophically sound, but I do think it's a practical framing.
It's easy to appreciate your past struggles and the growth that came from them, but it's hard to recognize that your current struggles may eventually be viewed the same way by your future self.
Even if right now seems like it's full of pointless suffering, there's no saying how you might grow from this moment or how your endurance of it may lead to a future where this struggle was both important and valuable. Challenges are opportunities if you remember that they are. You can't understand or appreciate the full meaning of each scene in a movie until its end. The conflict could be (and usually is) a necessary and surprisingly positive step in the protagonist's journey. We have no idea what's lucky or unlucky.
Look back on your past suffering and how much you learned or grew from those experiences, or how this moment would be unimaginably different without them.
Although it's a bit sadistic, people don't want an easy path in life and almost always find meaning in their struggles looking back. So why not find meaning in the struggle while it's happening? Completely separate planning and action
TLDR:
It's easy to appreciate past struggles and the growth that came from them, but it's hard to recognize that your current struggles may eventually be viewed the same way by your future self. Why not find meaning in the struggle while it's happening?
References:
It is a peculiarity of man that he can only live by looking to the future—sub specie aeternitatis. And this is his salvation in the most difficult moments of his existence, although he sometimes has to force his mind to the task.
A man who becomes conscious of the responsibility he bears toward a human being who affectionately waits for him, or to an unfinished work, will never be able to throw away his life. (p. 79)