Hi, Welcome to HealthcareMagic Forum.
Your Height seems to be Normal. what is your weight? You can still have chances to grow in height until you are 25 but it cannot be guaranteed since you have crossed 18. You an try Swimming and Skipping as they are know to increase the height. In addition to this eat healthy nutritious balanced diet which should include fresh fruits and Green Leafy vegetables and work out regularly. Stick to your Treatment Plan and go to your Nephrologist
for regular follow up regarding FSGS
Hope I have answered your query, I will be available to answer your follow up Queries.
Wish you Good Health.