We need to learn to accept what Allah has given us, and be patient with it. This is not to say that we should sit silently as life drags us, rather to have sabr means to accept what Allah has given you, and to keep striving for better, not to give up. You must be patient. Even if the pains of praying & wishing & waiting tire you. Be patient.
Sabr does not mean to give up and be resigned with unhappiness. Sabr is your attitude, your resilience, your trust in Allāh as you try again. And if needed, make an adjustment, change one more thing, but always try again.
Even when long periods of time pass by & others are blessed with what they’ve been praying for while you still wait. Be patient.
For Allaah subhaanahu wa ta’aala does not waste the effort of the doers of good. “Indeed, Allah is with those who are patient.” [3:160]
He has promised that He is with His believers who have Sabr, the promise of Allah is always true. Show a lot of patience before it happens & a lot of gratitude after it happens.