you have to practice but might take some time:
some of the tips are:
1. i ll be patient, i want Allah's pleasure
2. i ll be patient, i want Allah's jannah
3. i ll be patient, i want Allah's blessings in this life
4. i ll be patient, i want Allah to forgive my sins
5. pondering over small period of this life, eternal Hereafter, regret which others feel when they do wrong acts in anger, etc.
may Allah help u and all of us sister
ameen